code: func yaml_emitter_flush(emitter *yaml_emitter_t) bool {
  	if emitter.write_handler == nil {
  		panic("write handler not set")
  	}
  
  	// Check if the buffer is empty.
  	if emitter.buffer_pos == 0 {
  		return true
  	}
  
  	if err := emitter.write_handler(emitter, emitter.buffer[:emitter.buffer_pos]); err != nil {
  		return yaml_emitter_set_writer_error(emitter, "write error: "+err.Error())
  	}
  	emitter.buffer_pos = 0
  	return true
  }
docs: // Flush the output buffer.