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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 _validate_data(self):
 """Verifies that the data points contained in the class are valid. """

        msg = "Error! Expected {} timestamps, found {}.".format(
            len(self._data_points), len(self._timestamps))
        if len(self._data_points) != len(self._timestamps):
            raise MonsoonError(msg)