code: def tests(c):
      """Run the test suite"""
      c.run(f"{VENV_BIN}/pytest", pty=PTY)
  
file_path: pelican/tasks.py
imports: import os
  from pathlib import Path
  from shutil import which
  from invoke import task
label_desc: Use image node_id 3 for calling a global function with example usage: tests(c) without return types