docstr: Ensure validation settings do not result in an error
docstr_tok: ["Ensure","validation","settings","do","not","result","in","an","error"]
code: def test_validation(self):
      """
      Ensure validation settings do not result in an error
      """
      config = self.default_config(val_interval=10, val_size=10)
      model = Classifier(**config)
      train_sample = self.dataset.sample(n=20)
      model.fit(train_sample.Text, train_sample.Target)
  
imports: import os
  import unittest
  import logging
  import shutil
  import string
  import gc
  from copy import copy
  import time
  from pathlib import Path
  from unittest.mock import MagicMock
  import warnings
  import pytest
  import tensorflow
  import pandas
  import numpy
  from sklearn.metrics import accuracy_score, recall_score
  from finetune import Classifier
  from finetune.model import PredictMode
  from finetune.base_models import GPTModelSmall, GPT
  from finetune.datasets import generic_download
  from finetune.config import get_config
  from finetune.errors import FinetuneError
label_desc: Use image node_id 21 for calling the TestClassifier obj's underlying member method code with example usage: obj.test_validation() without return types