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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 AddHeadwayPeriod(self, start_time, end_time, headway_secs, problem_reporter=problems_module.default_problem_reporter):
 """Deprecated. Please use AddFrequency instead."""

    warnings.warn("No longer supported. The HeadwayPeriod class was renamed to "
                  "Frequency, and all related functions were renamed "
                  "accordingly.", DeprecationWarning)
    self.AddFrequency(start_time, end_time, headway_secs, problem_reporter)