class_docstr: The fake KVStore client.
  
  This is to mimic the distributed KVStore client. It's used for DistGraph
  in standalone mode.
class_docstr_tok: ["The","fake","KVStore","client",".","This","is","to","mimic","the","distributed","KVStore","client",".","It","'s","used","for","DistGraph","in","standalone","mode","."]
docstr: get the names of all data
docstr_tok: ["get","the","names","of","all","data"]
code: def data_name_list(self):
      """get the names of all data"""
      return list(self._data.keys())
  
imports: from ..None import backend
label_desc: Use image node_id 10 for calling the KVClient obj's underlying member method code with example usage: obj.data_name_list() and returns: list