def METHOD_NAME(proto, data):
    data_len = len(data)
    while data_len:
        buf = proto.get_buffer(data_len)
        buf_len = len(buf)
        if not buf_len:
            raise RuntimeError('get_buffer() returned an empty buffer')
        if buf_len >= data_len:
            buf[:data_len] = data
            proto.buffer_updated(data_len)
            return
        else:
            buf[:buf_len] = data[:buf_len]
            proto.buffer_updated(buf_len)
            data = data[buf_len:]
            data_len = len(data)