code: def get_joint_logits_labels(logits, one_hot_targets, class_splits):
      """Returns joint pairs of logits and labels.
  
      Args:
        logits: Tensor of shape [n, c]
        one_hot_targets: Tensor of shape [n, c]
        class_splits: List of length 2. The two elements, c1 and c. Used in
          jnp.split. Size of the two splits is therefore c1 and (c - c1)
  
      Returns:
        pairwise_logits: Tensor of shape [n, c1 * c2]
        pairwise_labels: One-hot tensor of shape [n, c1 * c2]
      """
  
      assert len(class_splits) == 2, "Class_splits should have length 2"
      assert logits.ndim == 2, "Logits should have dimension of 2"
      assert (
          one_hot_targets.ndim == 2
      ), "One hot target should have dimension of 2"
  
      n = logits.shape[0]
  
      logits_a, logits_b = jnp.split(logits, class_splits, axis=-1)[:-1]
      one_hot_a, one_hot_b = jnp.split(
          one_hot_targets, class_splits, axis=-1
      )[:-1]
      n_class_a, n_class_b = logits_a.shape[1], logits_b.shape[1]
  
      logits_a = jax.nn.softmax(logits_a, axis=-1)
      logits_b = jax.nn.softmax(logits_b, axis=-1)
  
      pairwise_logits = (
          logits_a[:, :, jnp.newaxis] * logits_b[:, jnp.newaxis, :]
      )
      pairwise_logits = jnp.reshape(
          pairwise_logits, [n, n_class_a * n_class_b]
      )
      labels_a = jnp.argmax(one_hot_a, axis=-1)
      labels_b = jnp.argmax(one_hot_b, axis=-1)
  
      pairwise_labels = labels_a * n_class_b + labels_b
      pairwise_labels = common_utils.onehot(
          pairwise_labels, n_class_a * n_class_b
      )
  
      return pairwise_logits, pairwise_labels
  
imports: from typing import Any, Optional, Tuple
  from absl import logging
  import flax
  from flax.linen import linear
  from flax.training import common_utils
  import jax
  import jax.numpy
  import ml_collections
  import numpy
  from scenic.common_lib import debug_utils
  from scenic.model_lib.base_models import model_utils
  import scipy
label_desc: Use image node_id 13 for calling a global function with example usage: get_joint_logits_labels(logits, one_hot_targets, class_splits) and returns: pairwise_logits,  pairwise_labels