code: def client(ephemeral_storage):
      """Mock the falcon.API instance for testing with an in memory database"""
      yield testing.TestClient(WebApi(ephemeral_storage.storage, {}))
  
imports: import pytest
  from falcon import testing
  from orion.serving.webapi import WebApi
  from orion.testing import OrionState
label_desc: Use image node_id 2 for calling a global function with example usage: client(ephemeral_storage) without return types