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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 data_len_for_day(self, day):
 """ Return the number of data points up to and including the provided day. """

        day_ix = self._session_labels.get_loc(day)
        # Add one to the 0-indexed day_ix to get the number of days.
        num_days = day_ix + 1
        return num_days * self._minutes_per_day