code: def shuffle_interactions(interactions, random_state=None):
      """
      Shuffle interactions.
  
      Parameters
      ----------
  
      interactions: :class:`spotlight.interactions.Interactions`
          The interactions to shuffle.
      random_state: np.random.RandomState, optional
          The random state used for the shuffle.
  
      Returns
      -------
  
      interactions: :class:`spotlight.interactions.Interactions`
          The shuffled interactions.
      """
  
      if random_state is None:
          random_state = np.random.RandomState()
  
      shuffle_indices = np.arange(len(interactions.user_ids))
      random_state.shuffle(shuffle_indices)
  
      return Interactions(
          interactions.user_ids[shuffle_indices],
          interactions.item_ids[shuffle_indices],
          ratings=_index_or_none(interactions.ratings, shuffle_indices),
          timestamps=_index_or_none(
              interactions.timestamps, shuffle_indices
          ),
          weights=_index_or_none(interactions.weights, shuffle_indices),
          num_users=interactions.num_users,
          num_items=interactions.num_items,
      )
  
imports: import numpy
  from sklearn.utils import murmurhash3_32
  from spotlight.interactions import Interactions
label_desc: Use image node_id 2 for calling a global function with example usage: shuffle_interactions(interactions, random_state) and returns: Interactions