code: def create_leaderboard_backend(
      self, project
  ) -> "OfflineLeaderboardApiClient":
      return OfflineLeaderboardApiClient()
  
imports: import logging
  from io import StringIO
  from neptune.common.utils import NoopObject
  from neptune.legacy.backend import BackendApiClient, LeaderboardApiClient
label_desc: Use image node_id 7 for calling the OfflineBackendApiClient obj's underlying member method code with example usage: obj.create_leaderboard_backend(project) and returns: OfflineLeaderboardApiClient