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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 StrPrefixOf(prefix, input_string):
 """ Return True if the concrete value of the input_string starts with prefix otherwise false. :param prefix: prefix we want to check :param input_string: the string we want to check :return: True if the input_string starts with prefix else false """

    return re.match(r'^' + prefix.value, input_string.value) is not None