anchor.diff:                    group = zsets, result_type = number}),
     ok;
   init_per_round(Fun, _Keys) when Fun =:= zcount_m;
  -                                Fun =:= zrange_m ->
  +                                Fun =:= zrange_m;
  +                                Fun =:= zrangebyscore_m ->
     edis_db:run(
       edis_db:process(0),
       #edis_command{cmd = <<"ZADD">>,
  
positive.code:                                Fun =:= zadd_one;
                                 Fun =:= zcount_n;
                                 Fun =:= zincrby;
                                 Fun =:= zrange_n ->
    zadd(Keys),
    ok;
  init_per_round(Fun, Keys) when Fun =:= zinterstore_min ->
  
negative.code:          quit/0, quit_per_testcase/1, quit_per_round/2]).
  -export([zadd/1, zadd_one/1, zcard/1, zcount_n/1, zcount_m/1, zincrby/1,
           zinterstore_min/1, zinterstore_n/1, zinterstore_k/1, zinterstore_m/1,
           zrange_n/1, zrange_m/1, zrangebyscore_n/1, zrangebyscore_m/1]).
  
  %% ====================================================================
  %% External functions
  