<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
 def _not(condition=None, **kwargs):
 """ Return the opposite of input condition. :param condition: condition to process. :result: not condition. :rtype: bool """


    result = True

    if condition is not None:
        result = not run(condition, **kwargs)

    return result