code: def test_multimodal_encoder_base(self):
      self._test_init(encoders.MultiModalEncoderBase)
  
imports: import tempfile
  import unittest
  import torch
  from mmf.modules import encoders
  from omegaconf import OmegaConf
  from tests.test_utils import setup_proxy, skip_if_no_pytorchvideo, skip_if_old_transformers
  from torch import nn
label_desc: Use image node_id 7 for calling the TestEncoders obj's underlying member method code with example usage: obj.test_multimodal_encoder_base() without return types