code: def setUp(self):
      (x_train, y_train), _ = test_utils.get_test_data(
          train_samples=10,
          test_samples=10,
          input_shape=(3,),
          num_classes=2,
      )
      y_train = numerical_utils.to_categorical(y_train)
  
      model = Sequential([layers.Dense(5), layers.Dense(2)])
  
      model.compile(
          loss="mse",
          optimizer="sgd",
      )
  
      self.model = model
      self.x_train = x_train
      self.y_train = y_train
  
file_path: keras/keras/callbacks/learning_rate_scheduler_test.py
imports: import pytest
  from keras import callbacks
  from keras import layers
  from keras import optimizers
  from keras import testing
  from keras.models import Sequential
  from keras.testing import test_utils
  from keras.utils import io_utils
  from keras.utils import numerical_utils
label_desc: Use image node_id 1 for calling the LearningRateSchedulerTest obj's underlying member method code with example usage: obj.setUp() without return types