Filter ._printChanges() so that it only prints what you want

_ReducerPrinter + filtering

import ComposableArchitecture

extension _ReducerPrinter {
  public static func filtered(actions includingActions: @escaping (Action) -> Bool) -> Self {
    Self { receivedAction, oldState, newState in
      if includingActions(receivedAction) {
        // repeated from _ReducerPrinter.customDump
        // TODO: Return a custom dump so that you don't need to repeat code
        var target = ""
        target.write("received action:\n")
        CustomDump.customDump(receivedAction, to: &target, indent: 2)
        target.write("\n")
        target.write(diff(oldState, newState).map { "\($0)\n" } ?? "  (No state changes)\n")
        print(target)
      }
    }
  }
  
  public static func filtered(changes includingChanges: @escaping (_ oldState: State, _ newState: State) -> Bool) -> Self {
    Self { receivedAction, oldState, newState in
      if includingChanges(oldState, newState) {
        // repeated from _ReducerPrinter.customDump
// TODO: Return a custom dump so that you don't need to repeat code
        var target = ""
        target.write("received action:\n")
        CustomDump.customDump(receivedAction, to: &target, indent: 2)
        target.write("\n")
        target.write(diff(oldState, newState).map { "\($0)\n" } ?? "  (No state changes)\n")
        print(target)
      }
    }
  }
}




// MARK: Example Usage

//      SharedVALUEAudioPlayerReducer()
//// Print only certain actions
//        ._printChanges(
//          .filtered(
//            actions: { action in
//              switch action {
//                case .childPlayer(.updateProgress):
//                  return false
//                default: return true
//              }
//            }
//          )
//        )
//      
//// Print only certain changes
//        ._printChanges(
//          .filtered(
//            changes: { oldState, newState in
//              // only print when sheetPlayer changes
//              oldState.sheetPlayer != newState.sheetPlayer
//            }
//          )
//        )