code: def docbuild(c):
      """Build documentation"""
      c.run(f"{VENV_BIN}/sphinx-build -W docs docs/_build", 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 1 for calling a global function with example usage: docbuild(c) without return types