code: def ZigZagEncode(value):
      """ZigZag Transform:  Encodes signed integers so that they can be
      effectively used with varint encoding.  See wire_format.h for
      more details.
      """
      if value >= 0:
          return value << 1
      return (value << 1) ^ (~0)
  
imports: import struct
  from google.protobuf import descriptor
  from google.protobuf import message
label_desc: Use image node_id 3 for calling a global function with example usage: ZigZagEncode(value) and returns: unknown, unknown