def GetPlasoTimestamp(self):
normalized_timestamp = self._GetNormalizedTimestamp()<EOL>if normalized_timestamp is None:<EOL><INDENT>return None<EOL><DEDENT>normalized_timestamp *= definitions.MICROSECONDS_PER_SECOND<EOL>normalized_timestamp = normalized_timestamp.quantize(<EOL><NUM_LIT:1>, rounding=decimal.ROUND_HALF_UP)<EOL>return int(normalized_timestamp)<EOL>
Retrieves a timestamp that is compatible with plaso.

        Returns:
          int: a POSIX timestamp in microseconds or None if no timestamp is
              available.