class_docstr: Test DRL model
code: def test_crossmodel(self):
      cross_config = SimpleNamespace(
          **{
              "hidden_dropout_prob": 0.1,
              "hidden_size": 512,
              "max_position_embeddings": 128,
              "num_attention_heads": 8,
              "num_hidden_layers": 4,
              "vocab_size": 512,
          }
      )
      cross = CrossModel(cross_config)
      width = cross.transformer.width
      self.assertTrue(width == 512)
      tes = cross.pooler.state_dict()["ln_pool.bias"].shape[
          0
      ]  # pylint: disable=unsubscriptable-object
      self.assertTrue(tes == 512)
  
imports: import unittest
  from types import SimpleNamespace
  from towhee.models.drl.module_cross import CrossModel
  from towhee.models.drl.drl import DRL
label_desc: Use image node_id 2 for calling the TestDRL obj's underlying member method code with example usage: obj.test_crossmodel() without return types