code: def initialize_video_encoder_from_clip_params(
      config: ml_collections.ConfigDict,
      params: Dict[str, Any],
      restored_params: Mapping[str, Any],
      load_projection: bool = False,
      video_modality_name: str = "video",
      model_prefix_path: Optional[List[str]] = None,
  ):
      """Initialize video encoder from a CLIP model."""
      if model_prefix_path:
          to_params = params[model_prefix_path[0]]
          for prefix in model_prefix_path[1:]:
              to_params = to_params[prefix]
      else:
          to_params = params
      if config.model.video_tower_config.get("modality_configs"):
          classifier = config.model.video_tower_config.modality_configs[
              video_modality_name
          ].encoder_config.image_encoder_config.classifier
      else:  # backward compatibility for single
          classifier = (
              config.model.video_tower_config.encoder_config.image_encoder_config.classifier
          )
      for m_key, m_params in restored_params.items():
          if m_key == "class_embedding":
              if "class_embedding" in to_params:
                  init_class_embedding(to_params, m_params)
          elif m_key == "conv1":
              init_conv1(m_params, to_params["conv1"])
          elif m_key == "positional_embedding":
              to_params["VisionTransformer"][m_key] = init_posembed(
                  m_params,
                  to_params["VisionTransformer"][m_key],
                  restored_classifier="token",
                  classifier=classifier,
              )
          elif m_key == "proj":
              if load_projection:
                  to_params["proj"] = m_params
          else:
              to_params["VisionTransformer"][m_key] = m_params
  
imports: from typing import Any, Dict, List, Mapping, Optional, Sequence, Union
  from absl import logging
  import flax
  import jax
  import jax.numpy
  import ml_collections
  import numpy
  from scenic.projects.vivit import model_utils
  from scenic.train_lib import train_utils
label_desc: Use image node_id 13 for calling a global function with example usage: initialize_video_encoder_from_clip_params(config, params, restored_params, load_projection, video_modality_name, model_prefix_path) without return types