docs: function StringReadableStream(str, options) {
  	if(!options) options = {};
  	delete options.objectMode;
  	delete options.readableObjectMode;
  	Readable.call(this, options);
  	this._currentString = str;
  	this._currentStringPos = 0;
  	this._stringChunkSize = options.chunkSize || 1024;
  }