code: def multi_class_corpus(self, tasks_base_path):
      pytest.skip(
          "This test requires the `multi_class_corpus` fixture to be defined"
      )
  
imports: from typing import Any, Dict, List, Optional, Type
  import pytest
  import flair
  from flair.data import Dictionary, Sentence
  from flair.embeddings import TransformerEmbeddings
  from flair.models import FewshotClassifier
  from flair.nn import Model
  from flair.trainers import ModelTrainer
label_desc: Use image node_id 3 for calling the BaseModelTest obj's underlying member method code with example usage: obj.multi_class_corpus(tasks_base_path) without return types