isp-bad.ts

interface Trainer {
  choosePokemon(p: Pokemon)
  switchPokemon(p: Pokemon)
}

class AceTrainer implements Trainer {
  choosePokemon(p) {}
  switchPokemon(p) {}
}

class NormalTrainer implements Trainer {
  choosePokemon(p) {}
  switchPokemon(p) {}  // Not Implemented
}