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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 jpath_exists(structure, jpath):
 """ Check if node at given JPath within given data structure does exist. :param str structure: data structure to be searched :param str jpath: JPath to be evaluated :return: True or False :rtype: bool """

    result = jpath_value(structure, jpath)
    if not result is None:
        return True
    return False