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|             <p><em>This is based on code by <a href="https://twitter.com/gharik">Georges Harik (@gharik)</a>.</em></p>
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| 
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|         </div>
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|         <div class='code'>
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|             <div class="highlight"><pre><span class="lineno">11</span><span></span><span class="kn">import</span> <span class="nn">random</span>
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| <span class="lineno">12</span><span class="kn">import</span> <span class="nn">string</span>
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| <span class="lineno">13</span><span class="kn">from</span> <span class="nn">typing</span> <span class="kn">import</span> <span class="n">List</span>
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| <span class="lineno">14</span>
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| <span class="lineno">15</span><span class="kn">import</span> <span class="nn">torch</span>
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| <span class="lineno">16</span><span class="kn">from</span> <span class="nn">labml.logger</span> <span class="kn">import</span> <span class="n">Text</span>
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| <span class="lineno">17</span><span class="kn">from</span> <span class="nn">torch.utils.data</span> <span class="kn">import</span> <span class="n">DataLoader</span><span class="p">,</span> <span class="n">Dataset</span>
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| <span class="lineno">18</span>
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| <span class="lineno">19</span><span class="kn">from</span> <span class="nn">labml</span> <span class="kn">import</span> <span class="n">monit</span><span class="p">,</span> <span class="n">logger</span><span class="p">,</span> <span class="n">tracker</span>
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| <span class="lineno">20</span><span class="kn">from</span> <span class="nn">labml.configs</span> <span class="kn">import</span> <span class="n">option</span>
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| <span class="lineno">21</span><span class="kn">from</span> <span class="nn">labml_nn.experiments.nlp_autoregression</span> <span class="kn">import</span> <span class="n">NLPAutoRegressionConfigs</span><span class="p">,</span> <span class="n">transpose_batch</span></pre></div>
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|         </div>
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|     </div>
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|     <div class='section' id='section-1'>
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|         <div class='docs doc-strings'>
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|             <div class='section-link'>
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|                 <a href='#section-1'>#</a>
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|             </div>
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|             <h2>Arithmetic Dataset</h2>
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| <p>This creates arithmetic addition problems and solutions with workings. We've only implemented addition so far.</p>
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| <p>It's based on a character level tokenization.</p>
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| 
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|         </div>
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|         <div class='code'>
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|             <div class="highlight"><pre><span class="lineno">24</span><span class="k">class</span> <span class="nc">ArithmeticDataset</span><span class="p">(</span><span class="n">Dataset</span><span class="p">):</span></pre></div>
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|         </div>
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|     </div>
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|     <div class='section' id='section-2'>
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|         <div class='docs doc-strings'>
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|             <div class='section-link'>
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|                 <a href='#section-2'>#</a>
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|             </div>
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|             <ul><li><code  class="highlight"><span></span><span class="n">seq_len</span></code>
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|   is the sequence length of generated math problems.  We fill as many problems as possible upto this length :max_digits: is the maximum number of digits in the operand integers :n_sequences: is the number of sequences per epoch</li></ul>
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| 
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|         </div>
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|         <div class='code'>
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|             <div class="highlight"><pre><span class="lineno">34</span>    <span class="k">def</span> <span class="fm">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">seq_len</span><span class="p">:</span> <span class="nb">int</span><span class="p">,</span> <span class="n">max_digits</span><span class="p">:</span> <span class="nb">int</span><span class="p">,</span> <span class="n">n_sequences</span><span class="p">:</span> <span class="nb">int</span><span class="p">):</span></pre></div>
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|         </div>
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|     </div>
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|     <div class='section' id='section-3'>
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|         <div class='docs'>
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|             <div class='section-link'>
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|                 <a href='#section-3'>#</a>
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|             </div>
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|             
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|         </div>
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|         <div class='code'>
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|             <div class="highlight"><pre><span class="lineno">41</span>        <span class="bp">self</span><span class="o">.</span><span class="n">n_sequences</span> <span class="o">=</span> <span class="n">n_sequences</span>
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| <span class="lineno">42</span>        <span class="bp">self</span><span class="o">.</span><span class="n">max_digits</span> <span class="o">=</span> <span class="n">max_digits</span>
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| <span class="lineno">43</span>        <span class="bp">self</span><span class="o">.</span><span class="n">seq_len</span> <span class="o">=</span> <span class="n">seq_len</span></pre></div>
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|         </div>
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|     </div>
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|     <div class='section' id='section-4'>
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|         <div class='docs'>
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|             <div class='section-link'>
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|                 <a href='#section-4'>#</a>
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|             </div>
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|             <p>Token id to string </p>
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| 
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|         </div>
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|         <div class='code'>
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|             <div class="highlight"><pre><span class="lineno">45</span>        <span class="bp">self</span><span class="o">.</span><span class="n">itos</span> <span class="o">=</span> <span class="nb">list</span><span class="p">(</span><span class="n">string</span><span class="o">.</span><span class="n">digits</span> <span class="o">+</span> <span class="s1">'xe =</span><span class="se">\n</span><span class="s1">?+;'</span><span class="p">)</span></pre></div>
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|         </div>
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|     </div>
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|     <div class='section' id='section-5'>
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|         <div class='docs'>
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|             <div class='section-link'>
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|                 <a href='#section-5'>#</a>
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|             </div>
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|             <p>Character to token id </p>
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| 
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|         </div>
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|         <div class='code'>
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|             <div class="highlight"><pre><span class="lineno">47</span>        <span class="bp">self</span><span class="o">.</span><span class="n">stoi</span> <span class="o">=</span> <span class="p">{</span><span class="n">c</span><span class="p">:</span> <span class="n">i</span> <span class="k">for</span> <span class="n">i</span><span class="p">,</span> <span class="n">c</span> <span class="ow">in</span> <span class="nb">enumerate</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">itos</span><span class="p">)}</span></pre></div>
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|         </div>
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|     </div>
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|     <div class='section' id='section-6'>
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|         <div class='docs doc-strings'>
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|             <div class='section-link'>
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|                 <a href='#section-6'>#</a>
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|             </div>
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|             <p> Generates an integer with <code  class="highlight"><span></span><span class="n">n_digit</span></code>
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|  number of digits</p>
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| 
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|         </div>
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|         <div class='code'>
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|             <div class="highlight"><pre><span class="lineno">49</span>    <span class="nd">@staticmethod</span>
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| <span class="lineno">50</span>    <span class="k">def</span> <span class="nf">make_int</span><span class="p">(</span><span class="n">n_digits</span><span class="p">:</span> <span class="nb">int</span><span class="p">):</span></pre></div>
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|         </div>
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|     </div>
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|     <div class='section' id='section-7'>
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|         <div class='docs'>
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|             <div class='section-link'>
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|                 <a href='#section-7'>#</a>
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|             </div>
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|             
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|         </div>
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|         <div class='code'>
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|             <div class="highlight"><pre><span class="lineno">54</span>        <span class="n">res</span> <span class="o">=</span> <span class="mi">0</span>
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| <span class="lineno">55</span>        <span class="k">for</span> <span class="n">i</span> <span class="ow">in</span> <span class="nb">range</span><span class="p">(</span><span class="n">n_digits</span><span class="p">):</span>
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| <span class="lineno">56</span>            <span class="n">d</span> <span class="o">=</span> <span class="n">random</span><span class="o">.</span><span class="n">randrange</span><span class="p">(</span><span class="mi">1</span><span class="p">,</span> <span class="mi">11</span><span class="p">)</span> <span class="k">if</span> <span class="n">i</span> <span class="o">==</span> <span class="mi">0</span> <span class="k">else</span> <span class="n">random</span><span class="o">.</span><span class="n">randrange</span><span class="p">(</span><span class="mi">0</span><span class="p">,</span> <span class="mi">11</span><span class="p">)</span>
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| <span class="lineno">57</span>            <span class="n">res</span> <span class="o">=</span> <span class="n">res</span> <span class="o">*</span> <span class="mi">10</span> <span class="o">+</span> <span class="n">d</span>
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| <span class="lineno">58</span>
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| <span class="lineno">59</span>        <span class="k">return</span> <span class="n">res</span></pre></div>
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|         </div>
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|     </div>
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|     <div class='section' id='section-8'>
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|         <div class='docs doc-strings'>
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|             <div class='section-link'>
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|                 <a href='#section-8'>#</a>
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|             </div>
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|             <p> Generates the workings for <code  class="highlight"><span></span><span class="n">x</span> <span class="o">+</span> <span class="n">y</span></code>
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| . For example for <code  class="highlight"><span></span><span class="mi">11</span><span class="o">+</span><span class="mi">29</span></code>
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|  it generates <code  class="highlight"><span></span><span class="mf">1e0</span><span class="o">+</span><span class="mf">9e0</span><span class="o">+</span><span class="mf">0e0</span><span class="o">=</span><span class="mf">10e0</span> <span class="mf">1e0</span><span class="o">+</span><span class="mf">2e0</span><span class="o">+</span><span class="mf">1e0</span><span class="o">=</span><span class="mf">4e0</span></code>
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| .</p>
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| 
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|         </div>
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|         <div class='code'>
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|             <div class="highlight"><pre><span class="lineno">61</span>    <span class="nd">@staticmethod</span>
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| <span class="lineno">62</span>    <span class="k">def</span> <span class="nf">get_add_explanation</span><span class="p">(</span><span class="n">x</span><span class="p">:</span> <span class="nb">int</span><span class="p">,</span> <span class="n">y</span><span class="p">:</span> <span class="nb">int</span><span class="p">):</span></pre></div>
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|         </div>
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|     </div>
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|     <div class='section' id='section-9'>
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|         <div class='docs'>
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|             <div class='section-link'>
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|                 <a href='#section-9'>#</a>
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|             </div>
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|             
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|         </div>
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|         <div class='code'>
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|             <div class="highlight"><pre><span class="lineno">69</span>        <span class="n">carry</span> <span class="o">=</span> <span class="mi">0</span>
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| <span class="lineno">70</span>        <span class="n">e</span> <span class="o">=</span> <span class="mi">0</span>
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| <span class="lineno">71</span>        <span class="n">explanation</span> <span class="o">=</span> <span class="p">[]</span>
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| <span class="lineno">72</span>        <span class="k">while</span> <span class="n">x</span> <span class="o">></span> <span class="mi">0</span> <span class="ow">or</span> <span class="n">y</span> <span class="o">></span> <span class="mi">0</span> <span class="ow">or</span> <span class="n">carry</span> <span class="o">></span> <span class="mi">0</span><span class="p">:</span>
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| <span class="lineno">73</span>            <span class="n">rx</span><span class="p">,</span> <span class="n">ry</span> <span class="o">=</span> <span class="n">x</span> <span class="o">%</span> <span class="mi">10</span><span class="p">,</span> <span class="n">y</span> <span class="o">%</span> <span class="mi">10</span>
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| <span class="lineno">74</span>            <span class="n">total</span> <span class="o">=</span> <span class="n">rx</span> <span class="o">+</span> <span class="n">ry</span> <span class="o">+</span> <span class="n">carry</span>
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| <span class="lineno">75</span>            <span class="n">explanation</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="sa">f</span><span class="s2">"</span><span class="si">{</span><span class="n">rx</span><span class="si">}</span><span class="s2">e</span><span class="si">{</span><span class="n">e</span><span class="si">}</span><span class="s2">+</span><span class="si">{</span><span class="n">ry</span><span class="si">}</span><span class="s2">e</span><span class="si">{</span><span class="n">e</span><span class="si">}</span><span class="s2">+</span><span class="si">{</span><span class="n">carry</span><span class="si">}</span><span class="s2">e</span><span class="si">{</span><span class="n">e</span><span class="si">}</span><span class="s2">==</span><span class="si">{</span><span class="n">total</span><span class="si">}</span><span class="s2">e</span><span class="si">{</span><span class="n">e</span><span class="si">}</span><span class="s2">"</span><span class="p">)</span>
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| <span class="lineno">76</span>            <span class="n">x</span><span class="p">,</span> <span class="n">y</span><span class="p">,</span> <span class="n">carry</span> <span class="o">=</span> <span class="n">x</span> <span class="o">//</span> <span class="mi">10</span><span class="p">,</span> <span class="n">y</span> <span class="o">//</span> <span class="mi">10</span><span class="p">,</span> <span class="n">total</span> <span class="o">//</span> <span class="mi">10</span>
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| <span class="lineno">77</span>            <span class="n">e</span> <span class="o">+=</span> <span class="mi">1</span>
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| <span class="lineno">78</span>
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| <span class="lineno">79</span>        <span class="k">return</span> <span class="s1">' '</span><span class="o">.</span><span class="n">join</span><span class="p">(</span><span class="n">explanation</span><span class="p">)</span></pre></div>
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|         </div>
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|     </div>
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|     <div class='section' id='section-10'>
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|         <div class='docs doc-strings'>
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|             <div class='section-link'>
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|                 <a href='#section-10'>#</a>
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|             </div>
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|             <p>Make a problem with a pre_explanation or not</p>
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| <p>Creates an arithmetic addition problem with workings and answer.</p>
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| 
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|         </div>
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|         <div class='code'>
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|             <div class="highlight"><pre><span class="lineno">82</span>    <span class="k">def</span> <span class="nf">make_add_problem</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span></pre></div>
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|         </div>
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|     </div>
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|     <div class='section' id='section-11'>
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|         <div class='docs'>
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|             <div class='section-link'>
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|                 <a href='#section-11'>#</a>
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|             </div>
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|             
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|         </div>
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|         <div class='code'>
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|             <div class="highlight"><pre><span class="lineno">86</span>        <span class="n">x</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">make_int</span><span class="p">(</span><span class="n">n_digits</span><span class="o">=</span><span class="n">random</span><span class="o">.</span><span class="n">randrange</span><span class="p">(</span><span class="mi">1</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">max_digits</span> <span class="o">+</span> <span class="mi">1</span><span class="p">))</span>
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| <span class="lineno">87</span>        <span class="n">y</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">make_int</span><span class="p">(</span><span class="n">n_digits</span><span class="o">=</span><span class="n">random</span><span class="o">.</span><span class="n">randrange</span><span class="p">(</span><span class="mi">1</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">max_digits</span> <span class="o">+</span> <span class="mi">1</span><span class="p">))</span>
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| <span class="lineno">88</span>
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| <span class="lineno">89</span>        <span class="n">explanation</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">get_add_explanation</span><span class="p">(</span><span class="n">x</span><span class="p">,</span> <span class="n">y</span><span class="p">)</span>
 | |
| <span class="lineno">90</span>        <span class="k">return</span> <span class="sa">f</span><span class="s2">"x=</span><span class="si">{</span><span class="n">x</span><span class="si">}</span><span class="s2">+</span><span class="si">{</span><span class="n">y</span><span class="si">}</span><span class="s2">; </span><span class="si">{</span><span class="n">explanation</span><span class="si">}</span><span class="s2"> x==</span><span class="si">{</span><span class="n">x</span><span class="w"> </span><span class="o">+</span><span class="w"> </span><span class="n">y</span><span class="si">}</span><span class="se">\n</span><span class="s2">"</span></pre></div>
 | |
|         </div>
 | |
|     </div>
 | |
|     <div class='section' id='section-12'>
 | |
|         <div class='docs doc-strings'>
 | |
|             <div class='section-link'>
 | |
|                 <a href='#section-12'>#</a>
 | |
|             </div>
 | |
|             <p> Get arithmetic problem and answer. This is used for evaluation.</p>
 | |
| 
 | |
|         </div>
 | |
|         <div class='code'>
 | |
|             <div class="highlight"><pre><span class="lineno">92</span>    <span class="k">def</span> <span class="nf">get_qa</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span></pre></div>
 | |
|         </div>
 | |
|     </div>
 | |
|     <div class='section' id='section-13'>
 | |
|         <div class='docs'>
 | |
|             <div class='section-link'>
 | |
|                 <a href='#section-13'>#</a>
 | |
|             </div>
 | |
|             
 | |
|         </div>
 | |
|         <div class='code'>
 | |
|             <div class="highlight"><pre><span class="lineno">96</span>        <span class="n">x</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">make_int</span><span class="p">(</span><span class="n">n_digits</span><span class="o">=</span><span class="n">random</span><span class="o">.</span><span class="n">randrange</span><span class="p">(</span><span class="mi">1</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">max_digits</span> <span class="o">+</span> <span class="mi">1</span><span class="p">))</span>
 | |
| <span class="lineno">97</span>        <span class="n">y</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">make_int</span><span class="p">(</span><span class="n">n_digits</span><span class="o">=</span><span class="n">random</span><span class="o">.</span><span class="n">randrange</span><span class="p">(</span><span class="mi">1</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">max_digits</span> <span class="o">+</span> <span class="mi">1</span><span class="p">))</span>
 | |
| <span class="lineno">98</span>
 | |
| <span class="lineno">99</span>        <span class="k">return</span> <span class="sa">f</span><span class="s1">'x=</span><span class="si">{</span><span class="n">x</span><span class="si">}</span><span class="s1">+</span><span class="si">{</span><span class="n">y</span><span class="si">}</span><span class="s1">;'</span><span class="p">,</span> <span class="sa">f</span><span class="s1">'</span><span class="si">{</span><span class="n">x</span><span class="w"> </span><span class="o">+</span><span class="w"> </span><span class="n">y</span><span class="si">}</span><span class="s1">'</span></pre></div>
 | |
|         </div>
 | |
|     </div>
 | |
|     <div class='section' id='section-14'>
 | |
|         <div class='docs doc-strings'>
 | |
|             <div class='section-link'>
 | |
|                 <a href='#section-14'>#</a>
 | |
|             </div>
 | |
|             <p> Generate multiple problems and pack them into a sequence.</p>
 | |
| 
 | |
|         </div>
 | |
|         <div class='code'>
 | |
|             <div class="highlight"><pre><span class="lineno">101</span>    <span class="k">def</span> <span class="nf">get_packed_math_input</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span></pre></div>
 | |
|         </div>
 | |
|     </div>
 | |
|     <div class='section' id='section-15'>
 | |
|         <div class='docs'>
 | |
|             <div class='section-link'>
 | |
|                 <a href='#section-15'>#</a>
 | |
|             </div>
 | |
|             
 | |
|         </div>
 | |
|         <div class='code'>
 | |
|             <div class="highlight"><pre><span class="lineno">105</span>        <span class="n">s_enc</span> <span class="o">=</span> <span class="p">[]</span>
 | |
| <span class="lineno">106</span>        <span class="k">while</span> <span class="nb">len</span><span class="p">(</span><span class="n">s_enc</span><span class="p">)</span> <span class="o"><=</span> <span class="bp">self</span><span class="o">.</span><span class="n">seq_len</span><span class="p">:</span>
 | |
| <span class="lineno">107</span>            <span class="n">s_part</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">make_add_problem</span><span class="p">()</span>
 | |
| <span class="lineno">108</span>            <span class="n">s_part_enc</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">encode</span><span class="p">(</span><span class="s1">'?'</span> <span class="o">+</span> <span class="n">s_part</span><span class="p">)</span>
 | |
| <span class="lineno">109</span>            <span class="n">s_enc</span> <span class="o">=</span> <span class="n">s_enc</span> <span class="o">+</span> <span class="n">s_part_enc</span>
 | |
| <span class="lineno">110</span>        <span class="k">return</span> <span class="n">s_enc</span></pre></div>
 | |
|         </div>
 | |
|     </div>
 | |
|     <div class='section' id='section-16'>
 | |
|         <div class='docs doc-strings'>
 | |
|             <div class='section-link'>
 | |
|                 <a href='#section-16'>#</a>
 | |
|             </div>
 | |
|             <p> Encode a given string</p>
 | |
| 
 | |
|         </div>
 | |
|         <div class='code'>
 | |
|             <div class="highlight"><pre><span class="lineno">112</span>    <span class="k">def</span> <span class="nf">encode</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">s</span><span class="p">:</span> <span class="nb">str</span><span class="p">):</span></pre></div>
 | |
|         </div>
 | |
|     </div>
 | |
|     <div class='section' id='section-17'>
 | |
|         <div class='docs'>
 | |
|             <div class='section-link'>
 | |
|                 <a href='#section-17'>#</a>
 | |
|             </div>
 | |
|             
 | |
|         </div>
 | |
|         <div class='code'>
 | |
|             <div class="highlight"><pre><span class="lineno">116</span>        <span class="k">return</span> <span class="p">[</span><span class="bp">self</span><span class="o">.</span><span class="n">stoi</span><span class="p">[</span><span class="n">c</span><span class="p">]</span> <span class="k">for</span> <span class="n">c</span> <span class="ow">in</span> <span class="n">s</span><span class="p">]</span></pre></div>
 | |
|         </div>
 | |
|     </div>
 | |
|     <div class='section' id='section-18'>
 | |
|         <div class='docs doc-strings'>
 | |
|             <div class='section-link'>
 | |
|                 <a href='#section-18'>#</a>
 | |
|             </div>
 | |
|             <p> Decode a list of token ids</p>
 | |
| 
 | |
|         </div>
 | |
|         <div class='code'>
 | |
|             <div class="highlight"><pre><span class="lineno">118</span>    <span class="k">def</span> <span class="nf">decode</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">arr</span><span class="p">:</span> <span class="n">List</span><span class="p">[</span><span class="nb">int</span><span class="p">]):</span></pre></div>
 | |
|         </div>
 | |
|     </div>
 | |
|     <div class='section' id='section-19'>
 | |
|         <div class='docs'>
 | |
|             <div class='section-link'>
 | |
|                 <a href='#section-19'>#</a>
 | |
|             </div>
 | |
|             
 | |
|         </div>
 | |
|         <div class='code'>
 | |
|             <div class="highlight"><pre><span class="lineno">122</span>        <span class="k">return</span> <span class="s1">''</span><span class="o">.</span><span class="n">join</span><span class="p">([</span><span class="bp">self</span><span class="o">.</span><span class="n">itos</span><span class="p">[</span><span class="n">c</span><span class="p">]</span> <span class="k">for</span> <span class="n">c</span> <span class="ow">in</span> <span class="n">arr</span><span class="p">])</span></pre></div>
 | |
|         </div>
 | |
|     </div>
 | |
|     <div class='section' id='section-20'>
 | |
|         <div class='docs doc-strings'>
 | |
|             <div class='section-link'>
 | |
|                 <a href='#section-20'>#</a>
 | |
|             </div>
 | |
|             <p> Get a input and target pair for auto-regressive modelling</p>
 | |
| 
 | |
|         </div>
 | |
|         <div class='code'>
 | |
|             <div class="highlight"><pre><span class="lineno">124</span>    <span class="k">def</span> <span class="fm">__getitem__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">idx</span><span class="p">:</span> <span class="nb">int</span><span class="p">):</span></pre></div>
 | |
|         </div>
 | |
|     </div>
 | |
|     <div class='section' id='section-21'>
 | |
|         <div class='docs'>
 | |
|             <div class='section-link'>
 | |
|                 <a href='#section-21'>#</a>
 | |
|             </div>
 | |
|             
 | |
|         </div>
 | |
|         <div class='code'>
 | |
|             <div class="highlight"><pre><span class="lineno">128</span>        <span class="n">s</span> <span class="o">=</span> <span class="n">torch</span><span class="o">.</span><span class="n">tensor</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">get_packed_math_input</span><span class="p">())</span>
 | |
| <span class="lineno">129</span>        <span class="k">return</span> <span class="n">s</span><span class="p">[:</span><span class="bp">self</span><span class="o">.</span><span class="n">seq_len</span><span class="p">],</span> <span class="n">s</span><span class="p">[</span><span class="mi">1</span><span class="p">:</span><span class="bp">self</span><span class="o">.</span><span class="n">seq_len</span> <span class="o">+</span> <span class="mi">1</span><span class="p">]</span></pre></div>
 | |
|         </div>
 | |
|     </div>
 | |
|     <div class='section' id='section-22'>
 | |
|         <div class='docs doc-strings'>
 | |
|             <div class='section-link'>
 | |
|                 <a href='#section-22'>#</a>
 | |
|             </div>
 | |
|             <p> Number of sequences per epoch</p>
 | |
| 
 | |
|         </div>
 | |
|         <div class='code'>
 | |
|             <div class="highlight"><pre><span class="lineno">131</span>    <span class="k">def</span> <span class="fm">__len__</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span></pre></div>
 | |
|         </div>
 | |
|     </div>
 | |
|     <div class='section' id='section-23'>
 | |
|         <div class='docs'>
 | |
|             <div class='section-link'>
 | |
|                 <a href='#section-23'>#</a>
 | |
|             </div>
 | |
|             
 | |
|         </div>
 | |
|         <div class='code'>
 | |
|             <div class="highlight"><pre><span class="lineno">135</span>        <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">n_sequences</span></pre></div>
 | |
|         </div>
 | |
|     </div>
 | |
|     <div class='section' id='section-24'>
 | |
|         <div class='docs doc-strings'>
 | |
|             <div class='section-link'>
 | |
|                 <a href='#section-24'>#</a>
 | |
|             </div>
 | |
|             <h2>Arithmetic Task Experiment Configurations</h2>
 | |
| 
 | |
|         </div>
 | |
|         <div class='code'>
 | |
|             <div class="highlight"><pre><span class="lineno">138</span><span class="k">class</span> <span class="nc">ArithmeticAutoregression</span><span class="p">(</span><span class="n">NLPAutoRegressionConfigs</span><span class="p">):</span></pre></div>
 | |
|         </div>
 | |
|     </div>
 | |
|     <div class='section' id='section-25'>
 | |
|         <div class='docs'>
 | |
|             <div class='section-link'>
 | |
|                 <a href='#section-25'>#</a>
 | |
|             </div>
 | |
|             <p>Maximum number of digits per operand integer </p>
 | |
| 
 | |
|         </div>
 | |
|         <div class='code'>
 | |
|             <div class="highlight"><pre><span class="lineno">143</span>    <span class="n">max_digits</span><span class="p">:</span> <span class="nb">int</span> <span class="o">=</span> <span class="mi">4</span></pre></div>
 | |
|         </div>
 | |
|     </div>
 | |
|     <div class='section' id='section-26'>
 | |
|         <div class='docs'>
 | |
|             <div class='section-link'>
 | |
|                 <a href='#section-26'>#</a>
 | |
|             </div>
 | |
|             <p>Number of training sequences per epoch </p>
 | |
| 
 | |
|         </div>
 | |
|         <div class='code'>
 | |
|             <div class="highlight"><pre><span class="lineno">145</span>    <span class="n">train_sequences_per_epoch</span><span class="p">:</span> <span class="nb">int</span> <span class="o">=</span> <span class="mi">2</span> <span class="o">**</span> <span class="mi">12</span></pre></div>
 | |
|         </div>
 | |
|     </div>
 | |
|     <div class='section' id='section-27'>
 | |
|         <div class='docs'>
 | |
|             <div class='section-link'>
 | |
|                 <a href='#section-27'>#</a>
 | |
|             </div>
 | |
|             <p>Training data loader </p>
 | |
| 
 | |
|         </div>
 | |
|         <div class='code'>
 | |
|             <div class="highlight"><pre><span class="lineno">147</span>    <span class="n">train_loader</span><span class="p">:</span> <span class="n">DataLoader</span> <span class="o">=</span> <span class="s1">'arithmetic_train_loader'</span></pre></div>
 | |
|         </div>
 | |
|     </div>
 | |
|     <div class='section' id='section-28'>
 | |
|         <div class='docs'>
 | |
|             <div class='section-link'>
 | |
|                 <a href='#section-28'>#</a>
 | |
|             </div>
 | |
|             <p>Number of problems in evaluation </p>
 | |
| 
 | |
|         </div>
 | |
|         <div class='code'>
 | |
|             <div class="highlight"><pre><span class="lineno">149</span>    <span class="n">n_tests</span><span class="p">:</span> <span class="nb">int</span> <span class="o">=</span> <span class="mi">64</span></pre></div>
 | |
|         </div>
 | |
|     </div>
 | |
|     <div class='section' id='section-29'>
 | |
|         <div class='docs'>
 | |
|             <div class='section-link'>
 | |
|                 <a href='#section-29'>#</a>
 | |
|             </div>
 | |
|             <p>No need of a validation dataset </p>
 | |
| 
 | |
|         </div>
 | |
|         <div class='code'>
 | |
|             <div class="highlight"><pre><span class="lineno">151</span>    <span class="n">validator</span> <span class="o">=</span> <span class="kc">None</span></pre></div>
 | |
|         </div>
 | |
|     </div>
 | |
|     <div class='section' id='section-30'>
 | |
|         <div class='docs'>
 | |
|             <div class='section-link'>
 | |
|                 <a href='#section-30'>#</a>
 | |
|             </div>
 | |
|             <p>Number of times to run evaluations per epoch </p>
 | |
| 
 | |
|         </div>
 | |
|         <div class='code'>
 | |
|             <div class="highlight"><pre><span class="lineno">153</span>    <span class="n">inner_iterations</span> <span class="o">=</span> <span class="mi">4</span></pre></div>
 | |
|         </div>
 | |
|     </div>
 | |
|     <div class='section' id='section-31'>
 | |
|         <div class='docs'>
 | |
|             <div class='section-link'>
 | |
|                 <a href='#section-31'>#</a>
 | |
|             </div>
 | |
|             <p>Number of tokens in the vocabulary </p>
 | |
| 
 | |
|         </div>
 | |
|         <div class='code'>
 | |
|             <div class="highlight"><pre><span class="lineno">155</span>    <span class="n">n_tokens</span> <span class="o">=</span> <span class="nb">len</span><span class="p">(</span><span class="n">ArithmeticDataset</span><span class="p">(</span><span class="mi">1</span><span class="p">,</span> <span class="mi">1</span><span class="p">,</span> <span class="mi">1</span><span class="p">)</span><span class="o">.</span><span class="n">itos</span><span class="p">)</span></pre></div>
 | |
|         </div>
 | |
|     </div>
 | |
|     <div class='section' id='section-32'>
 | |
|         <div class='docs doc-strings'>
 | |
|             <div class='section-link'>
 | |
|                 <a href='#section-32'>#</a>
 | |
|             </div>
 | |
|             <h3>Evaluation</h3>
 | |
| <p>We use the sampling function to evaluate the model on a set of problems</p>
 | |
| 
 | |
|         </div>
 | |
|         <div class='code'>
 | |
|             <div class="highlight"><pre><span class="lineno">157</span>    <span class="nd">@torch</span><span class="o">.</span><span class="n">no_grad</span><span class="p">()</span>
 | |
| <span class="lineno">158</span>    <span class="k">def</span> <span class="nf">sample</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span></pre></div>
 | |
|         </div>
 | |
|     </div>
 | |
|     <div class='section' id='section-33'>
 | |
|         <div class='docs'>
 | |
|             <div class='section-link'>
 | |
|                 <a href='#section-33'>#</a>
 | |
|             </div>
 | |
|             <p>Skip in the first epoch </p>
 | |
| 
 | |
|         </div>
 | |
|         <div class='code'>
 | |
|             <div class="highlight"><pre><span class="lineno">166</span>        <span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">training_loop</span><span class="o">.</span><span class="n">idx</span> <span class="o"><</span> <span class="mi">1</span><span class="p">:</span>
 | |
| <span class="lineno">167</span>            <span class="k">return</span></pre></div>
 | |
|         </div>
 | |
|     </div>
 | |
|     <div class='section' id='section-34'>
 | |
|         <div class='docs'>
 | |
|             <div class='section-link'>
 | |
|                 <a href='#section-34'>#</a>
 | |
|             </div>
 | |
|             <p>Create a dataset to generate problems </p>
 | |
| 
 | |
|         </div>
 | |
|         <div class='code'>
 | |
|             <div class="highlight"><pre><span class="lineno">170</span>        <span class="n">dataset</span> <span class="o">=</span> <span class="n">ArithmeticDataset</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">seq_len</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">max_digits</span><span class="p">,</span> <span class="mi">1</span><span class="p">)</span></pre></div>
 | |
|         </div>
 | |
|     </div>
 | |
|     <div class='section' id='section-35'>
 | |
|         <div class='docs'>
 | |
|             <div class='section-link'>
 | |
|                 <a href='#section-35'>#</a>
 | |
|             </div>
 | |
|             <p>Get a set of problems and answers </p>
 | |
| 
 | |
|         </div>
 | |
|         <div class='code'>
 | |
|             <div class="highlight"><pre><span class="lineno">172</span>        <span class="n">qa</span> <span class="o">=</span> <span class="p">[</span><span class="n">dataset</span><span class="o">.</span><span class="n">get_qa</span><span class="p">()</span> <span class="k">for</span> <span class="n">_</span> <span class="ow">in</span> <span class="nb">range</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">n_tests</span><span class="p">)]</span></pre></div>
 | |
|         </div>
 | |
|     </div>
 | |
|     <div class='section' id='section-36'>
 | |
|         <div class='docs'>
 | |
|             <div class='section-link'>
 | |
|                 <a href='#section-36'>#</a>
 | |
|             </div>
 | |
|             <p>Collect the problems only </p>
 | |
| 
 | |
|         </div>
 | |
|         <div class='code'>
 | |
|             <div class="highlight"><pre><span class="lineno">174</span>        <span class="n">questions</span> <span class="o">=</span> <span class="p">[</span><span class="n">p</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span> <span class="k">for</span> <span class="n">p</span> <span class="ow">in</span> <span class="n">qa</span><span class="p">]</span></pre></div>
 | |
|         </div>
 | |
|     </div>
 | |
|     <div class='section' id='section-37'>
 | |
|         <div class='docs'>
 | |
|             <div class='section-link'>
 | |
|                 <a href='#section-37'>#</a>
 | |
|             </div>
 | |
|             <p>Create a tensor with only the initial token </p>
 | |
| 
 | |
|         </div>
 | |
|         <div class='code'>
 | |
|             <div class="highlight"><pre><span class="lineno">177</span>        <span class="n">data</span> <span class="o">=</span> <span class="n">torch</span><span class="o">.</span><span class="n">tensor</span><span class="p">([[</span><span class="n">dataset</span><span class="o">.</span><span class="n">stoi</span><span class="p">[</span><span class="n">p</span><span class="p">[</span><span class="mi">0</span><span class="p">]]</span> <span class="k">for</span> <span class="n">p</span> <span class="ow">in</span> <span class="n">questions</span><span class="p">]])</span></pre></div>
 | |
|         </div>
 | |
|     </div>
 | |
|     <div class='section' id='section-38'>
 | |
|         <div class='docs'>
 | |
|             <div class='section-link'>
 | |
|                 <a href='#section-38'>#</a>
 | |
|             </div>
 | |
|             <p>Move to device </p>
 | |
| 
 | |
|         </div>
 | |
|         <div class='code'>
 | |
|             <div class="highlight"><pre><span class="lineno">179</span>        <span class="n">data</span> <span class="o">=</span> <span class="n">data</span><span class="o">.</span><span class="n">to</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">device</span><span class="p">)</span></pre></div>
 | |
|         </div>
 | |
|     </div>
 | |
|     <div class='section' id='section-39'>
 | |
|         <div class='docs'>
 | |
|             <div class='section-link'>
 | |
|                 <a href='#section-39'>#</a>
 | |
|             </div>
 | |
|             <p>Number of sequences that have completed </p>
 | |
| 
 | |
|         </div>
 | |
|         <div class='code'>
 | |
|             <div class="highlight"><pre><span class="lineno">182</span>        <span class="n">finished</span> <span class="o">=</span> <span class="n">torch</span><span class="o">.</span><span class="n">zeros</span><span class="p">((</span><span class="nb">len</span><span class="p">(</span><span class="n">questions</span><span class="p">),))</span><span class="o">.</span><span class="n">bool</span><span class="p">()</span><span class="o">.</span><span class="n">to</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">device</span><span class="p">)</span></pre></div>
 | |
|         </div>
 | |
|     </div>
 | |
|     <div class='section' id='section-40'>
 | |
|         <div class='docs'>
 | |
|             <div class='section-link'>
 | |
|                 <a href='#section-40'>#</a>
 | |
|             </div>
 | |
|             <p>Token id of the new line character - this marks end of the answer </p>
 | |
| 
 | |
|         </div>
 | |
|         <div class='code'>
 | |
|             <div class="highlight"><pre><span class="lineno">184</span>        <span class="n">new_line</span> <span class="o">=</span> <span class="n">dataset</span><span class="o">.</span><span class="n">stoi</span><span class="p">[</span><span class="s1">'</span><span class="se">\n</span><span class="s1">'</span><span class="p">]</span></pre></div>
 | |
|         </div>
 | |
|     </div>
 | |
|     <div class='section' id='section-41'>
 | |
|         <div class='docs'>
 | |
|             <div class='section-link'>
 | |
|                 <a href='#section-41'>#</a>
 | |
|             </div>
 | |
|             <p>Sampled results </p>
 | |
| 
 | |
|         </div>
 | |
|         <div class='code'>
 | |
|             <div class="highlight"><pre><span class="lineno">187</span>        <span class="n">results</span> <span class="o">=</span> <span class="p">[</span><span class="n">p</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span> <span class="k">for</span> <span class="n">p</span> <span class="ow">in</span> <span class="n">questions</span><span class="p">]</span></pre></div>
 | |
|         </div>
 | |
|     </div>
 | |
|     <div class='section' id='section-42'>
 | |
|         <div class='docs'>
 | |
|             <div class='section-link'>
 | |
|                 <a href='#section-42'>#</a>
 | |
|             </div>
 | |
|             <p>Sample upto sequence length </p>
 | |
| 
 | |
|         </div>
 | |
|         <div class='code'>
 | |
|             <div class="highlight"><pre><span class="lineno">190</span>        <span class="k">for</span> <span class="n">i</span> <span class="ow">in</span> <span class="n">monit</span><span class="o">.</span><span class="n">iterate</span><span class="p">(</span><span class="s1">'Sample'</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">seq_len</span> <span class="o">-</span> <span class="mi">1</span><span class="p">):</span></pre></div>
 | |
|         </div>
 | |
|     </div>
 | |
|     <div class='section' id='section-43'>
 | |
|         <div class='docs'>
 | |
|             <div class='section-link'>
 | |
|                 <a href='#section-43'>#</a>
 | |
|             </div>
 | |
|             <p>If all the sequences have completed we skip this </p>
 | |
| 
 | |
|         </div>
 | |
|         <div class='code'>
 | |
|             <div class="highlight"><pre><span class="lineno">192</span>            <span class="k">if</span> <span class="n">finished</span><span class="o">.</span><span class="n">sum</span><span class="p">()</span> <span class="o">==</span> <span class="nb">len</span><span class="p">(</span><span class="n">finished</span><span class="p">):</span>
 | |
| <span class="lineno">193</span>                <span class="k">continue</span></pre></div>
 | |
|         </div>
 | |
|     </div>
 | |
|     <div class='section' id='section-44'>
 | |
|         <div class='docs'>
 | |
|             <div class='section-link'>
 | |
|                 <a href='#section-44'>#</a>
 | |
|             </div>
 | |
|             <p>Get the model output </p>
 | |
| 
 | |
|         </div>
 | |
|         <div class='code'>
 | |
|             <div class="highlight"><pre><span class="lineno">196</span>            <span class="n">output</span><span class="p">,</span> <span class="o">*</span><span class="n">_</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">model</span><span class="p">(</span><span class="n">data</span><span class="p">)</span></pre></div>
 | |
|         </div>
 | |
|     </div>
 | |
|     <div class='section' id='section-45'>
 | |
|         <div class='docs'>
 | |
|             <div class='section-link'>
 | |
|                 <a href='#section-45'>#</a>
 | |
|             </div>
 | |
|             <p>Get the model prediction (greedy) </p>
 | |
| 
 | |
|         </div>
 | |
|         <div class='code'>
 | |
|             <div class="highlight"><pre><span class="lineno">198</span>            <span class="n">output</span> <span class="o">=</span> <span class="n">output</span><span class="p">[</span><span class="o">-</span><span class="mi">1</span><span class="p">]</span><span class="o">.</span><span class="n">argmax</span><span class="p">(</span><span class="n">dim</span><span class="o">=-</span><span class="mi">1</span><span class="p">)</span></pre></div>
 | |
|         </div>
 | |
|     </div>
 | |
|     <div class='section' id='section-46'>
 | |
|         <div class='docs'>
 | |
|             <div class='section-link'>
 | |
|                 <a href='#section-46'>#</a>
 | |
|             </div>
 | |
|             <p>Find which sequences have finished </p>
 | |
| 
 | |
|         </div>
 | |
|         <div class='code'>
 | |
|             <div class="highlight"><pre><span class="lineno">201</span>            <span class="n">finished</span> <span class="o">=</span> <span class="n">finished</span> <span class="o">|</span> <span class="p">(</span><span class="n">output</span> <span class="o">==</span> <span class="n">new_line</span><span class="p">)</span></pre></div>
 | |
|         </div>
 | |
|     </div>
 | |
|     <div class='section' id='section-47'>
 | |
|         <div class='docs'>
 | |
|             <div class='section-link'>
 | |
|                 <a href='#section-47'>#</a>
 | |
|             </div>
 | |
|             <p>Skip if all have finished </p>
 | |
| 
 | |
|         </div>
 | |
|         <div class='code'>
 | |
|             <div class="highlight"><pre><span class="lineno">203</span>            <span class="k">if</span> <span class="n">finished</span><span class="o">.</span><span class="n">sum</span><span class="p">()</span> <span class="o">==</span> <span class="nb">len</span><span class="p">(</span><span class="n">finished</span><span class="p">):</span>
 | |
| <span class="lineno">204</span>                <span class="k">continue</span></pre></div>
 | |
|         </div>
 | |
|     </div>
 | |
|     <div class='section' id='section-48'>
 | |
|         <div class='docs'>
 | |
|             <div class='section-link'>
 | |
|                 <a href='#section-48'>#</a>
 | |
|             </div>
 | |
|             <p>Override with the question </p>
 | |
| 
 | |
|         </div>
 | |
|         <div class='code'>
 | |
|             <div class="highlight"><pre><span class="lineno">207</span>            <span class="k">for</span> <span class="n">j</span><span class="p">,</span> <span class="n">p</span> <span class="ow">in</span> <span class="nb">enumerate</span><span class="p">(</span><span class="n">questions</span><span class="p">):</span>
 | |
| <span class="lineno">208</span>                <span class="k">if</span> <span class="nb">len</span><span class="p">(</span><span class="n">p</span><span class="p">)</span> <span class="o">></span> <span class="n">i</span> <span class="o">+</span> <span class="mi">1</span><span class="p">:</span>
 | |
| <span class="lineno">209</span>                    <span class="n">output</span><span class="p">[</span><span class="n">j</span><span class="p">]</span> <span class="o">=</span> <span class="n">dataset</span><span class="o">.</span><span class="n">stoi</span><span class="p">[</span><span class="n">p</span><span class="p">[</span><span class="n">i</span> <span class="o">+</span> <span class="mi">1</span><span class="p">]]</span></pre></div>
 | |
|         </div>
 | |
|     </div>
 | |
|     <div class='section' id='section-49'>
 | |
|         <div class='docs'>
 | |
|             <div class='section-link'>
 | |
|                 <a href='#section-49'>#</a>
 | |
|             </div>
 | |
|             <p>Add the next token to the input </p>
 | |
| 
 | |
|         </div>
 | |
|         <div class='code'>
 | |
|             <div class="highlight"><pre><span class="lineno">212</span>            <span class="n">data</span> <span class="o">=</span> <span class="n">torch</span><span class="o">.</span><span class="n">cat</span><span class="p">([</span><span class="n">data</span><span class="p">,</span> <span class="n">output</span><span class="p">[</span><span class="kc">None</span><span class="p">,</span> <span class="p">:]],</span> <span class="n">dim</span><span class="o">=</span><span class="mi">0</span><span class="p">)</span></pre></div>
 | |
|         </div>
 | |
|     </div>
 | |
|     <div class='section' id='section-50'>
 | |
|         <div class='docs'>
 | |
|             <div class='section-link'>
 | |
|                 <a href='#section-50'>#</a>
 | |
|             </div>
 | |
|             <p>Get the sampled results </p>
 | |
| 
 | |
|         </div>
 | |
|         <div class='code'>
 | |
|             <div class="highlight"><pre><span class="lineno">215</span>            <span class="k">for</span> <span class="n">j</span><span class="p">,</span> <span class="n">c</span> <span class="ow">in</span> <span class="nb">enumerate</span><span class="p">(</span><span class="n">output</span><span class="p">):</span>
 | |
| <span class="lineno">216</span>                <span class="n">results</span><span class="p">[</span><span class="n">j</span><span class="p">]</span> <span class="o">+=</span> <span class="n">dataset</span><span class="o">.</span><span class="n">itos</span><span class="p">[</span><span class="n">c</span><span class="p">]</span></pre></div>
 | |
|         </div>
 | |
|     </div>
 | |
|     <div class='section' id='section-51'>
 | |
|         <div class='docs'>
 | |
|             <div class='section-link'>
 | |
|                 <a href='#section-51'>#</a>
 | |
|             </div>
 | |
|             <p>Discard everything after the answer in the results </p>
 | |
| 
 | |
|         </div>
 | |
|         <div class='code'>
 | |
|             <div class="highlight"><pre><span class="lineno">219</span>        <span class="n">results</span> <span class="o">=</span> <span class="p">[</span><span class="n">r</span><span class="o">.</span><span class="n">split</span><span class="p">(</span><span class="s1">'</span><span class="se">\n</span><span class="s1">'</span><span class="p">)[</span><span class="mi">0</span><span class="p">]</span> <span class="k">for</span> <span class="n">r</span> <span class="ow">in</span> <span class="n">results</span><span class="p">]</span></pre></div>
 | |
|         </div>
 | |
|     </div>
 | |
|     <div class='section' id='section-52'>
 | |
|         <div class='docs'>
 | |
|             <div class='section-link'>
 | |
|                 <a href='#section-52'>#</a>
 | |
|             </div>
 | |
|             <p>Log a sample </p>
 | |
| 
 | |
|         </div>
 | |
|         <div class='code'>
 | |
|             <div class="highlight"><pre><span class="lineno">222</span>        <span class="n">res_sample</span> <span class="o">=</span> <span class="n">results</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span><span class="o">.</span><span class="n">split</span><span class="p">(</span><span class="s1">';'</span><span class="p">)</span>
 | |
| <span class="lineno">223</span>        <span class="n">logger</span><span class="o">.</span><span class="n">log</span><span class="p">([(</span><span class="n">res_sample</span><span class="p">[</span><span class="mi">0</span><span class="p">],</span> <span class="n">Text</span><span class="o">.</span><span class="n">key</span><span class="p">),</span> <span class="p">(</span><span class="s1">';'</span><span class="p">,</span> <span class="n">Text</span><span class="o">.</span><span class="n">subtle</span><span class="p">),</span> <span class="p">(</span><span class="s1">';'</span><span class="o">.</span><span class="n">join</span><span class="p">(</span><span class="n">res_sample</span><span class="p">[</span><span class="mi">1</span><span class="p">:]),</span> <span class="n">Text</span><span class="o">.</span><span class="n">none</span><span class="p">)])</span></pre></div>
 | |
|         </div>
 | |
|     </div>
 | |
|     <div class='section' id='section-53'>
 | |
|         <div class='docs'>
 | |
|             <div class='section-link'>
 | |
|                 <a href='#section-53'>#</a>
 | |
|             </div>
 | |
|             <p>Get the answers </p>
 | |
| 
 | |
|         </div>
 | |
|         <div class='code'>
 | |
|             <div class="highlight"><pre><span class="lineno">226</span>        <span class="n">results</span> <span class="o">=</span> <span class="p">[</span><span class="n">r</span><span class="o">.</span><span class="n">split</span><span class="p">(</span><span class="s1">'x=='</span><span class="p">)[</span><span class="o">-</span><span class="mi">1</span><span class="p">]</span> <span class="k">for</span> <span class="n">r</span> <span class="ow">in</span> <span class="n">results</span><span class="p">]</span></pre></div>
 | |
|         </div>
 | |
|     </div>
 | |
|     <div class='section' id='section-54'>
 | |
|         <div class='docs'>
 | |
|             <div class='section-link'>
 | |
|                 <a href='#section-54'>#</a>
 | |
|             </div>
 | |
|             <p>Count the number of correct answers </p>
 | |
| 
 | |
|         </div>
 | |
|         <div class='code'>
 | |
|             <div class="highlight"><pre><span class="lineno">229</span>        <span class="n">correct</span> <span class="o">=</span> <span class="mi">0</span>
 | |
| <span class="lineno">230</span>        <span class="k">for</span> <span class="n">r</span><span class="p">,</span> <span class="n">_qa</span> <span class="ow">in</span> <span class="nb">zip</span><span class="p">(</span><span class="n">results</span><span class="p">,</span> <span class="n">qa</span><span class="p">):</span>
 | |
| <span class="lineno">231</span>            <span class="k">if</span> <span class="n">r</span> <span class="o">==</span> <span class="n">_qa</span><span class="p">[</span><span class="mi">1</span><span class="p">]:</span>
 | |
| <span class="lineno">232</span>                <span class="n">correct</span> <span class="o">+=</span> <span class="mi">1</span></pre></div>
 | |
|         </div>
 | |
|     </div>
 | |
|     <div class='section' id='section-55'>
 | |
|         <div class='docs'>
 | |
|             <div class='section-link'>
 | |
|                 <a href='#section-55'>#</a>
 | |
|             </div>
 | |
|             <p>Log the score </p>
 | |
| 
 | |
|         </div>
 | |
|         <div class='code'>
 | |
|             <div class="highlight"><pre><span class="lineno">235</span>        <span class="n">tracker</span><span class="o">.</span><span class="n">save</span><span class="p">(</span><span class="s1">'score'</span><span class="p">,</span> <span class="n">correct</span> <span class="o">/</span> <span class="nb">len</span><span class="p">(</span><span class="n">results</span><span class="p">))</span></pre></div>
 | |
|         </div>
 | |
|     </div>
 | |
|     <div class='section' id='section-56'>
 | |
|         <div class='docs doc-strings'>
 | |
|             <div class='section-link'>
 | |
|                 <a href='#section-56'>#</a>
 | |
|             </div>
 | |
|             <p> Training data loader</p>
 | |
| 
 | |
|         </div>
 | |
|         <div class='code'>
 | |
|             <div class="highlight"><pre><span class="lineno">238</span><span class="nd">@option</span><span class="p">(</span><span class="n">ArithmeticAutoregression</span><span class="o">.</span><span class="n">train_loader</span><span class="p">)</span>
 | |
| <span class="lineno">239</span><span class="k">def</span> <span class="nf">arithmetic_train_loader</span><span class="p">(</span><span class="n">c</span><span class="p">:</span> <span class="n">ArithmeticAutoregression</span><span class="p">):</span></pre></div>
 | |
|         </div>
 | |
|     </div>
 | |
|     <div class='section' id='section-57'>
 | |
|         <div class='docs'>
 | |
|             <div class='section-link'>
 | |
|                 <a href='#section-57'>#</a>
 | |
|             </div>
 | |
|             
 | |
|         </div>
 | |
|         <div class='code'>
 | |
|             <div class="highlight"><pre><span class="lineno">243</span>    <span class="k">return</span> <span class="n">DataLoader</span><span class="p">(</span><span class="n">ArithmeticDataset</span><span class="p">(</span><span class="n">c</span><span class="o">.</span><span class="n">seq_len</span><span class="p">,</span> <span class="n">c</span><span class="o">.</span><span class="n">max_digits</span><span class="p">,</span> <span class="n">c</span><span class="o">.</span><span class="n">train_sequences_per_epoch</span><span class="p">),</span>
 | |
| <span class="lineno">244</span>                      <span class="n">batch_size</span><span class="o">=</span><span class="n">c</span><span class="o">.</span><span class="n">batch_size</span><span class="p">,</span>
 | |
| <span class="lineno">245</span>                      <span class="n">collate_fn</span><span class="o">=</span><span class="n">transpose_batch</span><span class="p">,</span>
 | |
| <span class="lineno">246</span>                      <span class="n">num_workers</span><span class="o">=</span><span class="mi">4</span><span class="p">)</span></pre></div>
 | |
|         </div>
 | |
|     </div>
 | |
|     <div class='section' id='section-58'>
 | |
|         <div class='docs doc-strings'>
 | |
|             <div class='section-link'>
 | |
|                 <a href='#section-58'>#</a>
 | |
|             </div>
 | |
|             <p> Code to test generated problems</p>
 | |
| 
 | |
|         </div>
 | |
|         <div class='code'>
 | |
|             <div class="highlight"><pre><span class="lineno">249</span><span class="k">def</span> <span class="nf">_test</span><span class="p">():</span></pre></div>
 | |
|         </div>
 | |
|     </div>
 | |
|     <div class='section' id='section-59'>
 | |
|         <div class='docs'>
 | |
|             <div class='section-link'>
 | |
|                 <a href='#section-59'>#</a>
 | |
|             </div>
 | |
|             
 | |
|         </div>
 | |
|         <div class='code'>
 | |
|             <div class="highlight"><pre><span class="lineno">253</span>    <span class="n">dataset</span> <span class="o">=</span> <span class="n">ArithmeticDataset</span><span class="p">(</span><span class="mi">256</span><span class="p">,</span> <span class="mi">8</span><span class="p">,</span> <span class="mi">10</span><span class="p">)</span>
 | |
| <span class="lineno">254</span>
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| <span class="lineno">255</span>    <span class="nb">print</span><span class="p">(</span><span class="n">dataset</span><span class="o">.</span><span class="n">decode</span><span class="p">(</span><span class="n">dataset</span><span class="o">.</span><span class="n">get_packed_math_input</span><span class="p">()))</span></pre></div>
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|         </div>
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|     <div class='section' id='section-60'>
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|         <div class='docs'>
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|             <div class='section-link'>
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|                 <a href='#section-60'>#</a>
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|             </div>
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|             <p> </p>
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| 
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|         </div>
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|         <div class='code'>
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|             <div class="highlight"><pre><span class="lineno">259</span><span class="k">if</span> <span class="vm">__name__</span> <span class="o">==</span> <span class="s1">'__main__'</span><span class="p">:</span>
 | |
| <span class="lineno">260</span>    <span class="n">_test</span><span class="p">()</span></pre></div>
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