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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 __bytes_to_share_data(self, payload):
 """Attempt to auto-decode data"""

        rbytes = payload[P_DATA]
        mime = payload[P_MIME]

        if mime is None or not self.__auto_encode_decode:
            return rbytes, mime
        mime = expand_idx_mimetype(mime).lower()
        try:
            if mime == 'application/ubjson':
                return ubjloadb(rbytes), None
            elif mime == 'text/plain; charset=utf8':
                return rbytes.decode('utf-8'), None
            else:
                return rbytes, mime
        except:
            logger.warning('auto-decode failed, returning bytes', exc_info=DEBUG_ENABLED)
            return rbytes, mime