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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 wrap_function(self, func):
 """ Wrap a function to timestamp it. """

        def f(*args, **kwds):
            # Start time
            timestamps = [_get_memory(os.getpid(), timestamps=True)]
            self.functions[func].append(timestamps)
            try:
                result = func(*args, **kwds)
            finally:
                # end time
                timestamps.append(_get_memory(os.getpid(), timestamps=True))
            return result
        return f