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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 _is_national_number_suffix_of_other(numobj1, numobj2):
 """Returns true when one national number is the suffix of the other or both are the same. """

    nn1 = str(numobj1.national_number)
    nn2 = str(numobj2.national_number)
    # Note that endswith returns True if the numbers are equal.
    return nn1.endswith(nn2) or nn2.endswith(nn1)