def set_run_validators(run):
    """
    Set whether or not validators are run.  By default, they are run.
    """
    if not isinstance(run, bool):
        raise TypeError("'run' must be bool.")
    global _run_validators
    _run_validators = run

    Set whether or not validators are run.  By default, they are run.
    
stackoverflow/venv/lib/python3.6/site-packages/attr/_config.py