/// <summary>
        /// Gets the symbols async
        /// </summary>
        /// <returns>Symbol summaries</returns>
        public async Task <CallResult <IEnumerable <HitBTCSymbol> > > GetSymbolsAsync()
        {
            var req    = new GetSymbolsRequest(NextId());
            var result = await Query <HitBTCSocketResponse <IEnumerable <HitBTCSymbol> > >(req, false).ConfigureAwait(false);

            return(new CallResult <IEnumerable <HitBTCSymbol> >(result.Data?.Result, result.Error));
        }
        public async Task <GrpcResponseWithData <GrpcList <string> > > GetSymbolsAsync(GetSymbolsRequest request)
        {
            var data = await _orderBookManager.GetSymbols(request.Source);

            return(GrpcResponseWithData <GrpcList <string> > .Create(GrpcList <string> .Create(data)));
        }