HKT

type Kind<F extends TypeLambda, In, Out2, Out1, Target> = F extends {
  readonly type: unknown;
} ? F & {
  readonly In: In;
  readonly Out1: Out1;
  readonly Out2: Out2;
  readonly Target: Target;
}["type"] : {
  readonly F: F;
  readonly In: Types.Contravariant<In>;
  readonly Out1: Types.Covariant<Out1>;
  readonly Out2: Types.Covariant<Out2>;
  readonly Target: Types.Invariant<Target>;
}

interface TypeClass<F extends TypeLambda> {
  readonly [URI]?: F;
}

interface TypeLambda {
  readonly In: unknown;
  readonly Out1: unknown;
  readonly Out2: unknown;
  readonly Target: unknown;
}

declare const URI: unique symbol