code: def create_leaderboard_backend(
      self, project
  ) -> "LeaderboardApiClient":
      pass
  
imports: from abc import ABC, abstractmethod
  from typing import Dict
  from neptune.legacy.model import ChannelWithLastValue
label_desc: Use image node_id 3 for calling the BackendApiClient obj's underlying member method code with example usage: obj.create_leaderboard_backend(project) without return types