Function function

packages/effect/src/Function.ts:113–117

(this: any)

} = function(arity, body) {
  if (typeof arity === "function") {
    return function(this: any) {
      return arity(arguments)
        ? body.apply(this, arguments as any)
        : ((self: any) => body(self, ...arguments)) as any
    }
  }

  switch (arity) {