code: def build_image_projection_head(
      opts: argparse.Namespace,
      in_dim: int,
      out_dim: int,
      *args,
      **kwargs,
  ) -> BaseImageProjectionHead:
      """Helper function to build an image projection head from command-line arguments.
  
      Args:
          opts: Command-line arguments
          in_dim: Input dimension to the projection head.
          out_dim: Output dimension of the projection head.
  
      Returns:
          Image projection head module.
      """
  
      # Get the name of image projection head
      image_projection_head_name = getattr(
          opts, "model.image_projection_head.name"
      )
  
      # We registered the base class using a special `name` (i.e., `__base__`)
      # in order to access the arguments defined inside those classes. However, these classes are not supposed to
      # be used. Therefore, we raise an error for such cases
      if image_projection_head_name == "__base__":
          logger.error(
              "__base__ can't be used as a projection name. Please check."
          )
  
      image_projection_head = IMAGE_PROJECTION_HEAD_REGISTRY[
          image_projection_head_name
      ](opts, in_dim, out_dim, *args, **kwargs)
      return image_projection_head
  
imports: import argparse
  from cvnets.image_projection_layers.base_image_projection import BaseImageProjectionHead
  from utils import logger
  from utils.registry import Registry
label_desc: Use image node_id 2 for calling a global function with example usage: build_image_projection_head(opts, in_dim, out_dim) and returns: image_projection_head