Error in complex arbitrary command

[CacaoGatto]

I want to test the performance of RedisGraph with memtier benchmark, and my input is:

memtier_benchmark --server 127.0.0.1 --port 6379 -n 1000 -c 1 -t 1 --hide-histogram --command="graph.query GRAPH1 \"MATCH (s:vertex)-[*6]->(t) WHERE id_in_graph(s)=__key__ RETURN count(t)\"" --key-maximum=100000 --distinct-client-seed --command-key-pattern G

and the benchmark raised an error:

error: key placeholder can't combined with other data

So I checked the source code:

            if (current_arg->data.length() != strlen(KEY_PLACEHOLDER)) {
                benchmark_error_log("error: key placeholder can't combined with other data\n");
                return false;
            }

Maybe my quoted command is treated as a whole parameter? And how to enable my command?
Thanks

[CacaoGatto]

#154 solves this problem. Thanks @filipecosta90