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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 FromMilliseconds(self, millis):
 """Converts milliseconds to Duration."""

    self._NormalizeDuration(
        millis // _MILLIS_PER_SECOND,
        (millis % _MILLIS_PER_SECOND) * _NANOS_PER_MILLISECOND)