code: def is_VDLGraph_file(path):
      """Determine whether it is a VDL graph file according to the file name.
  
      File name of a VDL graph file must contain `vdlgraph`.
  
      Args:
          path: File name to determine.
      Returns:
          True if the file is a VDL graph file, otherwise false.
      """
      if "vdlgraph" not in path and "pdmodel" not in path:
          return False
      return True
  
imports: import json
  import os
  from visualdl.component.graph import analyse_model
  from visualdl.component.graph import Model
  from visualdl.io import bfile
label_desc: Use image node_id 1 for calling a global function with example usage: is_VDLGraph_file(path) and returns: True, False