{"action":"opened","issue":{"url":"https://api.github.com/repos/StackExchange/StackExchange.Redis/issues/247","labels_url":"https://api.github.com/repos/StackExchange/StackExchange.Redis/issues/247/labels{/name}","comments_url":"https://api.github.com/repos/StackExchange/StackExchange.Redis/issues/247/comments","events_url":"https://api.github.com/repos/StackExchange/StackExchange.Redis/issues/247/events","html_url":"https://github.com/StackExchange/StackExchange.Redis/issues/247","id":97399814,"number":247,"title":"custom condition within transaction","user":{"login":"leslietoo","id":9415065,"avatar_url":"https://avatars.githubusercontent.com/u/9415065?v=3","gravatar_id":"","url":"https://api.github.com/users/leslietoo","html_url":"https://github.com/leslietoo","followers_url":"https://api.github.com/users/leslietoo/followers","following_url":"https://api.github.com/users/leslietoo/following{/other_user}","gists_url":"https://api.github.com/users/leslietoo/gists{/gist_id}","starred_url":"https://api.github.com/users/leslietoo/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/leslietoo/subscriptions","organizations_url":"https://api.github.com/users/leslietoo/orgs","repos_url":"https://api.github.com/users/leslietoo/repos","events_url":"https://api.github.com/users/leslietoo/events{/privacy}","received_events_url":"https://api.github.com/users/leslietoo/received_events","type":"User","site_admin":false},"labels":[],"state":"open","locked":false,"assignee":null,"milestone":null,"comments":0,"created_at":"2015-07-27T07:01:34Z","updated_at":"2015-07-27T07:01:34Z","closed_at":null,"body":"I want to add some conditions within a transaction like when a Set/OrderedSet/List contains some value, or when Set/OrderedSet/List/HashSet's length is 0(or 1,2, whatever). But there were only few predefined Condition like HashEqual, HashNotEqual, HashExists, HashNotExists, KeyExists, KeyNotExists, StringEqual, StringNotEqual.  So what can I do? Can I realized a custom condition?"}}