code: def get_config(self):
      return LxmertConfig(
          vocab_size=self.vocab_size,
          hidden_size=self.hidden_size,
          num_attention_heads=self.num_attention_heads,
          num_labels=self.num_labels,
          intermediate_size=self.intermediate_size,
          hidden_act=self.hidden_act,
          hidden_dropout_prob=self.hidden_dropout_prob,
          attention_probs_dropout_prob=self.attention_probs_dropout_prob,
          max_position_embeddings=self.max_position_embeddings,
          type_vocab_size=self.type_vocab_size,
          initializer_range=self.initializer_range,
          layer_norm_eps=self.layer_norm_eps,
          pad_token_id=self.pad_token_id,
          num_qa_labels=self.num_qa_labels,
          num_object_labels=self.num_object_labels,
          num_attr_labels=self.num_attr_labels,
          l_layers=self.l_layers,
          x_layers=self.x_layers,
          r_layers=self.r_layers,
          visual_feat_dim=self.visual_feat_dim,
          visual_pos_dim=self.visual_pos_dim,
          visual_loss_normalizer=self.visual_loss_normalizer,
          task_matched=self.task_matched,
          task_mask_lm=self.task_mask_lm,
          task_obj_predict=self.task_obj_predict,
          task_qa=self.task_qa,
          visual_obj_loss=self.visual_obj_loss,
          visual_attr_loss=self.visual_attr_loss,
          visual_feat_loss=self.visual_feat_loss,
          output_attentions=self.output_attentions,
          output_hidden_states=self.output_hidden_states,
      )
  
imports: import copy
  import unittest
  import numpy
  from transformers import LxmertConfig, is_tf_available, is_torch_available
  from transformers.models.auto import get_values
  from transformers.testing_utils import require_torch, slow, torch_device
  from ...test_configuration_common import ConfigTester
  from ...test_modeling_common import ModelTesterMixin, ids_tensor
label_desc: Use image node_id 3 for calling the LxmertModelTester obj's underlying member method code with example usage: obj.get_config() and returns: LxmertConfig