code: def DvecIsNone(self) -> bool:
      o = flatbuffers.number_types.UOffsetTFlags.py_type(
          self._tab.Offset(20)
      )
      return o == 0
  
imports: import flatbuffers
  from flatbuffers.compat import import_numpy
  from typing import Any
label_desc: Use image node_id 16 for calling the MonsterExtra obj's underlying member method code with example usage: obj.DvecIsNone() and returns: unknown