code: def get_estimated_size_and_observables(
      self, value: Any, nested=False
  ):
      return 0, []
  
imports: from typing import Any
  from apache_beam.coders.coder_impl import StreamCoderImpl, create_InputStream, create_OutputStream
  from pyflink.fn_execution.stream_slow import OutputStream
  from pyflink.fn_execution.beam.beam_stream_slow import BeamInputStream, BeamTimeBasedOutputStream
label_desc: Use image node_id 4 for calling the PassThroughLengthPrefixCoderImpl obj's underlying member method code with example usage: obj.get_estimated_size_and_observables(value, nested) and returns: int,  list