code: def keras_model_type_combinations():
      return combinations.combine(model_type=KERAS_MODEL_TYPES)
  
file_path: tensorflow/tensorflow/python/keras/combinations.py
imports: import functools
  from tensorflow.python import tf2
  from tensorflow.python.framework import combinations
  from tensorflow.python.framework import test_combinations
  from tensorflow.python.keras import testing_utils
label_desc: Use image node_id 2 for calling a global function with example usage: keras_model_type_combinations() and returns: combinations