Which @angular/* package(s) are the source of the bug?

core

Is this a regression?

Yes

Description

When using Input transform feature, the input's type become unknown, and I'd like to allow certain type only like boolean | ''

import { booleanAttribute, Component, Input } from '@angular/core';

@Component({
  selector: 'app-test',
  template: `Disabled {{ disabled | json }}`,
})
export class TestComponent {
  @Input({ transform: booleanAttribute })
  disabled?: boolean;

  static ngAcceptInputType_disabled: boolean | '';
}

Please provide a link to a minimal reproduction of the bug

https://stackblitz.com/edit/stackblitz-starters-zji3lf

Please provide the exception or error you saw

Class cannot have both a transform function on Input disabled and a static member called ngAcceptInputType_disabled

Please provide the environment you discovered this bug in (run ng version)

No response

Anything else?

No response