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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 clear_adb_log(self):
 """Clears cached adb content."""

        try:
            self._ad.adb.logcat('-c')
        except adb.AdbError as e:
            # On Android O, the clear command fails due to a known bug.
            # Catching this so we don't crash from this Android issue.
            if b'failed to clear' in e.stderr:
                self._ad.log.warning(
                    'Encountered known Android error to clear logcat.')
            else:
                raise