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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def bool(name, execute_bool=True, default=None):
 """Only execute the function if the boolean variable is set. Args: name: The name of the environment variable execute_bool: The boolean value to execute the function on default: The default value if the environment variable is not set (respects `execute_bool`) Returns: The function return value or `None` if the function was skipped. """

    def wrapped(func):
        @functools.wraps(func)
        def _decorator(*args, **kwargs):
            if core.isset(name) and core.bool(name) == execute_bool:
                return func(*args, **kwargs)
            elif default is not None and default == execute_bool:
                return func(*args, **kwargs)
        return _decorator
    return wrapped