class_docstr: Video Text Dual Transformer model as defined in CLIP4CLIP.
class_docstr_tok: ["Video","Text","Dual","Transformer","model","as","defined","in","CLIP4CLIP","."]
code: def get_metrics_fn(self, split: Optional[str] = None):
      pass
  
imports: from typing import Any, Optional
  import flax.linen
  import jax
  import jax.numpy
  import ml_collections
  from scenic.model_lib.base_models import base_model
  from scenic.projects.baselines.clip import layers
  from scenic.projects.baselines.clip import model
  from scenic.projects.verbs_in_action import losses
  from scenic.projects.verbs_in_action import utils
label_desc: Use image node_id 2 for calling the VideoAndTextModel obj's underlying member method code with example usage: obj.get_metrics_fn(split) without return types