NativeScript/tns-core-modules/utils/module-merge.ts

// This method iterates all the keys in the source exports object and copies them to the destination exports one.
// Note: the method will not check for naming collisions and will override any already existing entries in the destination exports.
export var merge = function (sourceExports: any, destExports: any) {
    for (var key in sourceExports) {
        destExports[key] = sourceExports[key];
    }
}