What's the correct way to handle empty abstract method parameters?

[utdrmac]

Consider the following:

interface Foo {
  public function addSomething(string $message): void
}

class Bar implements Foo {
  public function addSomething(string $message): void {
    // not implemented for this class
  }
}

Assume there are other classes that implement Foo where addSomething does work with the passed parameter. I get this error in phpcs:

906 | ERROR | [ ] Unused parameter $message. SlevomatCodingStandard.Functions.UnusedParameter.UnusedParameter

What's the correct way to resolve this? I feel like adding a phpcs:ignore above each function adds comment bloat, but if that's the correct way, I guess I'll do it.