Arguments
The member to get the rank of.
Response
redis.zadd("myset", {"a": 1, "b": 2, "c": 3})
assert redis.zrank("myset", "a") == 0
assert redis.zrank("myset", "d") == None
assert redis.zrank("myset", "b") == 1
assert redis.zrank("myset", "c") == 2