code: def get_instances(self, n: int = 45) -> list[str]:
      raise NotImplementedError
  
file_path: SMAC3/tests/fixtures/datasets.py
imports: from __future__ import annotations
  from abc import abstractmethod
  import itertools
  import numpy
  import pytest
  from sklearn import datasets
label_desc: Use image node_id 1 for calling the Dataset obj's underlying member method code with example usage: obj.get_instances(n) without return types