<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
 def get_info(self, symbol):
 """ Returns information about the symbol, in a dictionary Parameters symbol: str the symbol for the given item in the DB Returns ------- dictionary """

        sym = self._get_symbol_info(symbol)
        if not sym:
            raise NoDataFoundException("Symbol does not exist.")
        ret = {}
        ret['chunk_count'] = sym[CHUNK_COUNT]
        ret['len'] = sym[LEN]
        ret['appended_rows'] = sym[APPEND_COUNT]
        ret['metadata'] = sym[METADATA] if METADATA in sym else None
        ret['chunker'] = sym[CHUNKER]
        ret['chunk_size'] = sym[CHUNK_SIZE] if CHUNK_SIZE in sym else 0
        ret['serializer'] = sym[SERIALIZER]
        return ret