code: def mock_vertex_environment():
      """Mock an instance of the GcpEnvironment class."""
      environment = MagicMock()
      environment.region.return_value = "europe-west-4"
  
      async def _mock_verify():
          return True
  
      environment.verify = _mock_verify
  
file_path: wandb/tests/pytest_tests/system_tests/test_launch/test_launch_vertex.py
imports: from unittest.mock import MagicMock
  import pytest
  import wandb
  from wandb.apis.internal import Api
  from wandb.sdk.launch import loader
  from wandb.sdk.launch._project_spec import EntryPoint
  from wandb.sdk.launch.environment.gcp_environment import GcpEnvironment
label_desc: Use image node_id 1 for calling a global function with example usage: mock_vertex_environment() and returns: True