code: def test_model_input_names(self):
      image_processor = self.get_image_processor()
      tokenizer = self.get_tokenizer()
  
      processor = IdeficsProcessor(
          tokenizer=tokenizer, image_processor=image_processor
      )
      prompts = self.prepare_prompts()
  
      inputs = processor(prompts)
  
      # For now the processor supports only ['pixel_values', 'input_ids', 'attention_mask']
      self.assertSetEqual(set(inputs.keys()), set(self.input_keys))
  
file_path: transformers/tests/models/idefics/test_processor_idefics.py
imports: import numpy
  from transformers.testing_utils import TestCasePlus, require_torch, require_vision
  from transformers.utils import is_torch_available, is_vision_available
label_desc: Use image node_id 9 for calling the IdeficsProcessorTest obj's underlying member method code with example usage: obj.test_model_input_names() without return types