code: def is_directed(cls) -> bool:
      return False
  
imports: from __future__ import annotations
  from copy import deepcopy
  from typing import TYPE_CHECKING, ClassVar
  import cupy
  import networkx
  import numpy
  import nx_cugraph
  from ..utils import index_dtype
  from .graph import Graph
label_desc: Use image node_id 7 for calling the MultiGraph obj's underlying member method code with example usage: obj.is_directed(cls) and returns: False