{ "ZRANDMEMBER": { "summary": "Get one or multiple random elements from a sorted set", "complexity": "O(N) where N is the number of elements returned", "group": "sorted_set", "since": "6.2.0", "arity": -2, "function": "zrandmemberCommand", "command_flags": [ "READONLY" ], "acl_categories": [ "SORTEDSET" ], "command_tips": [ "NONDETERMINISTIC_OUTPUT" ], "key_specs": [ { "flags": [ "RO", "ACCESS" ], "begin_search": { "index": { "pos": 1 } }, "find_keys": { "range": { "lastkey": 0, "step": 1, "limit": 0 } } } ], "arguments": [ { "name": "key", "type": "key", "key_spec_index": 0 }, { "name": "options", "type": "block", "optional": true, "arguments": [ { "name": "count", "type": "integer" }, { "name": "withscores", "token": "WITHSCORES", "type": "pure-token", "optional": true } ] } ] } }