Elazar Yifrach

Not sure a Maybe is fit here

1

Just wondering, considering this discussion: https://github.com/apollographql/apollo-ios/issues/473 since it might result more than once, if cancellable should be an observer, and not a maybe or single. https://github.com/scottrhoyt/RxApollo/blob/208fc07c4b4ba349643f655ad2d6a5bd0402527e/RxApollo/RxApollo.swift#L38