docs: function createImportTargets(importTargets, targetName, targetDirectory) {
    const importMap = {};
    for (const x in importTargets) {
      importMap['rxjs/' + x] = ('rxjs-compat/' + targetName + importTargets[x]).replace(/\.js$/, '');
    }
  
    const outputData =
  `
  "use strict"
  
  var path = require('path');
  var dir = path.resolve(__dirname);
  
  module.exports = function() {
    return ${JSON.stringify(importMap, null, 4)};
  }
  `
  
    fs.outputFileSync(targetDirectory + 'path-mapping.js', outputData);
  }