def monitor(func):
    """
    A decorator that wraps a function to monitor its execution and handle exceptions.

    This decorator performs the following actions:
    1. Retrieves the 'config' parameter from the function's keyword arguments or positional arguments.
    2. Executes the wrapped function.
    3. If an exception occurs during the execution of the wrapped function, logs the error message and stack trace.
    4. Optionally pauses the execution if the environment variable 'PAUSE_ON_FAILURE' is set to 1.

    Args:
        func (callable): The function to be wrapped by the decorator.

    Returns:
        callable: The wrapped function with monitoring capabilities.
    """

    def wrapper(*args, **kwargs):
        config = kwargs.get("config", None)
        if config is None and len(args) > 0:
            config = args[0]

        try:
            return func(*args, **kwargs)
        except Exception as e:
            error_message = f"""{func.__name__} has failed due to an exception: {traceback.format_exc()}"""
            logger.error(error_message)
            logger.error(str(e))
            if int(os.environ.get("PAUSE_ON_FAILURE", 1)) == 1:
                pause_space(config, is_failure=True)

    return wrapper

    A decorator that wraps a function to monitor its execution and handle exceptions.

    This decorator performs the following actions:
    1. Retrieves the 'config' parameter from the function's keyword arguments or positional arguments.
    2. Executes the wrapped function.
    3. If an exception occurs during the execution of the wrapped function, logs the error message and stack trace.
    4. Optionally pauses the execution if the environment variable 'PAUSE_ON_FAILURE' is set to 1.

    Args:
        func (callable): The function to be wrapped by the decorator.

    Returns:
        callable: The wrapped function with monitoring capabilities.
    
src/autotrain/trainers/common.py