code: def __init__(self):
      if temporenc is None:
          raise RuntimeError(
              "Serialization to/from datetime needs the "
              'third-party library "temporenc"'
          )
  
imports: import abc
  from datetime import datetime, timezone
  from uuid import UUID
  from .const import ENDIAN
label_desc: Use image node_id 1 to create a new DatetimeUTCSerializer object from inherited base classes: Serializer with example: obj = DatetimeUTCSerializer()