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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 ExpireBreakpoint(self):
 """Expires this breakpoint."""

    # Let only one thread capture the data and complete the breakpoint.
    if not self._SetCompleted():
      return

    if self.definition.get('action') == 'LOG':
      message = ERROR_AGE_LOGPOINT_EXPIRED_0
    else:
      message = ERROR_AGE_SNAPSHOT_EXPIRED_0
    self._CompleteBreakpoint({
        'status': {
            'isError': True,
            'refersTo': 'BREAKPOINT_AGE',
            'description': {'format': message}}})