code: def subprocess():
      return Mock()
  
file_path: hail/hail/python/test/hailtop/hailctl/dataproc/test_connect.py
imports: from unittest.mock import Mock
  from typer.testing import CliRunner
  import pytest
  from hailtop.hailctl.dataproc import cli
label_desc: Use image node_id 1 for calling a global function with example usage: subprocess() and returns: Mock