code: function write (chunk, encoding, fn) {
    if (!this._parserInit) init(this);
    debug('write(%o bytes)', chunk.length);
  
    // XXX: old Writable stream API compat... remove at some point...
    if ('function' == typeof encoding) fn = encoding;
  
    data(this, chunk, null, fn);
  }
docs: The `_write()` callback function implementation.
  
  @api private