{"action":"created","issue":{"url":"https://api.github.com/repos/typelevel/cats/issues/1230","repository_url":"https://api.github.com/repos/typelevel/cats","labels_url":"https://api.github.com/repos/typelevel/cats/issues/1230/labels{/name}","comments_url":"https://api.github.com/repos/typelevel/cats/issues/1230/comments","events_url":"https://api.github.com/repos/typelevel/cats/issues/1230/events","html_url":"https://github.com/typelevel/cats/pull/1230","id":167357000,"number":1230,"title":"Adding leftWiden to XorT","user":{"login":"zainab-ali","id":12057118,"avatar_url":"https://avatars.githubusercontent.com/u/12057118?v=3","gravatar_id":"","url":"https://api.github.com/users/zainab-ali","html_url":"https://github.com/zainab-ali","followers_url":"https://api.github.com/users/zainab-ali/followers","following_url":"https://api.github.com/users/zainab-ali/following{/other_user}","gists_url":"https://api.github.com/users/zainab-ali/gists{/gist_id}","starred_url":"https://api.github.com/users/zainab-ali/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/zainab-ali/subscriptions","organizations_url":"https://api.github.com/users/zainab-ali/orgs","repos_url":"https://api.github.com/users/zainab-ali/repos","events_url":"https://api.github.com/users/zainab-ali/events{/privacy}","received_events_url":"https://api.github.com/users/zainab-ali/received_events","type":"User","site_admin":false},"labels":[],"state":"open","locked":false,"assignee":null,"assignees":[],"milestone":null,"comments":6,"created_at":"2016-07-25T12:43:50Z","updated_at":"2016-07-27T21:52:29Z","closed_at":null,"pull_request":{"url":"https://api.github.com/repos/typelevel/cats/pulls/1230","html_url":"https://github.com/typelevel/cats/pull/1230","diff_url":"https://github.com/typelevel/cats/pull/1230.diff","patch_url":"https://github.com/typelevel/cats/pull/1230.patch"},"body":"Adding a `leftWiden` method to `XorT`, as `XorT` is invariant on errors, as referenced in #556 "},"comment":{"url":"https://api.github.com/repos/typelevel/cats/issues/comments/235733004","html_url":"https://github.com/typelevel/cats/pull/1230#issuecomment-235733004","issue_url":"https://api.github.com/repos/typelevel/cats/issues/1230","id":235733004,"user":{"login":"zainab-ali","id":12057118,"avatar_url":"https://avatars.githubusercontent.com/u/12057118?v=3","gravatar_id":"","url":"https://api.github.com/users/zainab-ali","html_url":"https://github.com/zainab-ali","followers_url":"https://api.github.com/users/zainab-ali/followers","following_url":"https://api.github.com/users/zainab-ali/following{/other_user}","gists_url":"https://api.github.com/users/zainab-ali/gists{/gist_id}","starred_url":"https://api.github.com/users/zainab-ali/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/zainab-ali/subscriptions","organizations_url":"https://api.github.com/users/zainab-ali/orgs","repos_url":"https://api.github.com/users/zainab-ali/repos","events_url":"https://api.github.com/users/zainab-ali/events{/privacy}","received_events_url":"https://api.github.com/users/zainab-ali/received_events","type":"User","site_admin":false},"created_at":"2016-07-27T21:52:29Z","updated_at":"2016-07-27T21:52:29Z","body":"I'm not too sure about `rightWiden`.  All of the cats data types which have a `Bifunctor` also have a `Functor` on the \"right\" (I think).  Hence, they can use the `widen` on `Functor`.  \r\nIt would be useful to widen something which had a `Bifunctor[A, B]`, and no `Functor[B]`, but I can't think of a data type that needs it."}}
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