code: function ignoreStream(strategy) {
      if (!(strategy instanceof IgnoreStrategy)) {
          strategy = DefaultIgnoreStrategy.INSTANCE;
      }
  
      return through.obj(function(chunk, enc, cb) {
          strategy.execute(this, chunk).then(function(isIgnored) {
              if (!isIgnored) {
                  cb(null, chunk);
              } else {
                  cb(null);
              }
          });
      });
  }
docs: Prevents writing of `webpack.config.js`. Can be piped.
  @function
  @alias ignoreStream
  @param {IgnoreStrategy=} strategy
  @returns {Stream}