Function invalidate_github_read_cache_resource 

pub fn invalidate_github_read_cache_resource(
    conn: &Connection,
    resource_kind: GithubReadResourceKind,
    resolved_repository: &str,
    resource_number: i64,
    effective_authentication_identity: Option<&str>,
) -> Result<usize>

Invalidate a resource across identities, or only one identity when supplied.

A successful mutation can conservatively omit effective_authentication_identity when its result may affect caches visible to more than one principal.