code: def _DecodeFixed32(buffer, pos):
      """Decode a fixed32."""
  
      new_pos = pos + 4
      return (struct.unpack("<I", buffer[pos:new_pos])[0], new_pos)
  
imports: import struct
  import sys
  import six
  from google.protobuf.internal import containers
  from google.protobuf.internal import encoder
  from google.protobuf.internal import wire_format
  from google.protobuf import message
label_desc: Use image node_id 25 for calling a global function with example usage: _DecodeFixed32(buffer, pos) and returns: struct,  new_pos