code: def EnumByteSize(field_number, enum):
      return UInt32ByteSize(field_number, enum)
  
imports: import struct
  from google.protobuf import descriptor
  from google.protobuf import message
label_desc: Use image node_id 19 for calling a global function with example usage: EnumByteSize(field_number, enum) and returns: UInt32ByteSize