code: def train_val_explicit_data(movielens_explicit_interactions):
      return stratified_split(
          interactions=movielens_explicit_interactions,
          val_p=0.0,
          test_p=0.2,
          seed=42,
      )
  
imports: import pytest
  from sklearn.model_selection import train_test_split
  from collie.cross_validation import random_split, stratified_split
  from collie.interactions import ExplicitInteractions, Interactions
  from collie.movielens import get_movielens_metadata, get_user_metadata, read_movielens_df, read_movielens_df_item, read_movielens_df_user, read_movielens_posters_df
  from collie.utils import convert_to_implicit
label_desc: Use image node_id 13 for calling a global function with example usage: train_val_explicit_data(movielens_explicit_interactions) and returns: stratified_split