feat: Adding more helpers, wip

Sources/ComposableSubscriber/ReceiveAction.swift

@@ -0,0 +1,15 @@
+import ComposableArchitecture
+
+public protocol ReceiveAction<ReceiveAction> {
+  associatedtype ReceiveAction
+  static func receive(_ result: TaskResult<ReceiveAction>) -> Self
+
+  var result: TaskResult<ReceiveAction>? { get }
+}
+
+extension ReceiveAction {
+
+  public var result: TaskResult<ReceiveAction>? {
+    AnyCasePath(unsafe: Self.receive).extract(from: self)
+  }
+}