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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 exclusive(via=threading.Lock):
 """ Mark a callable as exclusive :param via: factory for a Lock to guard the callable Guards the callable against being entered again before completion. Explicitly raises a :py:exc:`RuntimeError` on violation. :note: If applied to a method, it is exclusive across all instances. """

    def make_exclusive(fnc):
        fnc_guard = via()

        @functools.wraps(fnc)
        def exclusive_call(*args, **kwargs):
            if fnc_guard.acquire(blocking=False):
                try:
                    return fnc(*args, **kwargs)
                finally:
                    fnc_guard.release()
            else:
                raise RuntimeError('exclusive call to %s violated')
        return exclusive_call
    return make_exclusive