wip: wtf

src/internal.ts

@@ -0,0 +1,13 @@
+import type { HKT } from "./base/hkt";
+
+export interface Identity extends HKT {
+	new: (t: HKT.T<this>) => typeof t;
+}
+
+// eslint-disable-next-line @typescript-eslint/no-unsafe-type-assertion
+export const never = undefined as never;
+
+export type Constraint<T, U extends T> = U;
+
+// eslint-disable-next-line @typescript-eslint/no-empty-object-type
+export type Empty = Constraint<Record<PropertyKey, unknown>, {}>;