def schema_key_for(self, seq_no: int) -> SchemaKey:
        """
        Get schema key for schema by sequence number if known, None for no such schema in cache.

        :param seq_no: sequence number
        :return: corresponding schema key or None
        """

        LOGGER.debug('SchemaCache.schema_key_for >>> seq_no: %s', seq_no)

        rv = self._seq_no2schema_key.get(seq_no, None)

        LOGGER.debug('SchemaCache.schema_key_for <<< %s', rv)
        return rv
def schema_key_for ( self , seq_no : int ) -> SchemaKey : LOGGER . debug ( 'SchemaCache.schema_key_for >>> seq_no: %s' , seq_no ) rv = self . _seq_no2schema_key . get ( seq_no , None ) LOGGER . debug ( 'SchemaCache.schema_key_for <<< %s' , rv ) return rv
Get schema key for schema by sequence number if known, None for no such schema in cache.

        :param seq_no: sequence number
        :return: corresponding schema key or None