UNLINK key [key ...]
Time complexity: O(N) where N is the number of keys that will be removed.
ACL categories: @keyspace, @write, @fast
This command is equivalent to
DEL command, see
DEL for more information.
Integer reply: The number of keys that were unlinked.
dragonfly> SET key1 "Hello"
dragonfly> SET key2 "World"
dragonfly> UNLINK key1 key2 key3