code: def explicit_interactions_matrix(ratings_matrix_for_interactions):
      return ExplicitInteractions(mat=ratings_matrix_for_interactions)
  
imports: import os
  import numpy
  import pandas
  import pytest
  from collie.interactions import ExplicitInteractions, HDF5Interactions, Interactions
  from collie.utils import create_ratings_matrix, pandas_df_to_hdf5
label_desc: Use image node_id 13 for calling a global function with example usage: explicit_interactions_matrix(ratings_matrix_for_interactions) and returns: ExplicitInteractions