message: fix hash key
diff: @@ -114,7 +114,7 @@ export abstract class Layer<RIn, E, ROut> {
  readonly _E!: () => E
  readonly _ROut!: () => ROut
  - setKey(hash: symbol) {
  + setKey(hash: PropertyKey) {
  this.hash.set(hash)
  return this
  }
  