docstr: Test BridgeFormer without model_name=None & pretrained=False.
code: def test_base(self):
      """
      Test BridgeFormer without model_name=None & pretrained=False.
      """
  
      model = create_model(
          pretrained=False,
          img_size=self.image_size,
          patch_size=self.patch_size,
          in_chans=self.in_chans,
          projection_dim=256,
      )
      text_embeddings, video_embeddings = model(
          text=self.dummy_text,
          video=self.dummy_video,
          return_embeds=True,
      )
      self.assertEqual(text_embeddings.shape, (1, 256))
      self.assertEqual(video_embeddings.shape, (1, 256))
      text_with_video_sim = sim_matrix(
          text_embeddings, video_embeddings
      )
      self.assertEqual(text_with_video_sim.shape, (1, 1))
  
file_path: towhee/tests/unittests/models/bridgeformer/test_bridge_former.py
imports: import unittest
  import torch
  from towhee.models.bridgeformer import create_model
  from towhee.models.frozen_in_time.frozen_utils import sim_matrix
label_desc: Use image node_id 1 for calling the BridgeFormerTest obj's underlying member method code with example usage: obj.test_base() without return types