code: def prepare_config_and_inputs_for_common(self):
      config, inputs_dict = self.prepare_config_and_inputs()
      return config, inputs_dict
  
imports: import unittest
  import numpy
  import timeout_decorator
  from transformers import MBartConfig, is_flax_available
  from transformers.testing_utils import require_flax, require_sentencepiece, require_tokenizers, slow
  from transformers.utils import cached_property
  from ...generation.test_generation_flax_utils import FlaxGenerationTesterMixin
  from ...test_modeling_flax_common import FlaxModelTesterMixin, ids_tensor
label_desc: Use image node_id 3 for calling the FlaxMBartModelTester obj's underlying member method code with example usage: obj.prepare_config_and_inputs_for_common() and returns: config,  inputs_dict