code: def _add_read_data(self, data):
      self._crc = zlib.crc32(data, self._crc)
      self._stream_size = self._stream_size + len(data)
  
imports: import struct, sys, time, os
  import zlib
  import builtins
  import io
  import _compression
label_desc: Use image node_id 5 for calling the _GzipReader obj's underlying member method code with example usage: obj._add_read_data(data) without return types