code: def generate(self) -> str:
      rv_string_length = randint(self._min_length, self._max_length)
      randomized_letters = choices(
          self._seed_letters, k=rv_string_length
      )
      return "".join(randomized_letters)
  
imports: from random import choices, randint
label_desc: Use image node_id 2 for calling the StringGenerator obj's underlying member method code with example usage: obj.generate() and returns: str