pub unsafe trait Store: Copy {
type I: 'static + LfsStorage;
type E: 'static + LfsStorage;
type V: 'static + LfsStorage;
fn ifs(self) -> &'static Fs<Self::I>;
fn efs(self) -> &'static Fs<Self::E>;
fn vfs(self) -> &'static Fs<Self::V>;
}