{ fetchFromGitHub }: fetchFromGitHub { owner = "krux02"; repo = "ast-pattern-matching"; rev = "87f7d163421af5a4f5e5cb6da7b93278e6897e96"; sha256 = "19mb5bb6riia8380p5dpc3q0vwgrj958dd6p7vw8vkvwiqrzg6zq"; }