code: def init_model(self):
      super(ItemMSMF, self).init_model()
      if self.verbose:
          print(
              "\nread_similarity_matrix_time:: %4f sec"
              % timed(self.fill_similarity_matrix)
          )
      else:
          self.fill_similarity_matrix()
  
file_path: CaseRecommender/caserec/recommenders/rating_prediction/item_msmf.py
imports: import numpy
  from caserec.recommenders.rating_prediction.matrixfactorization import MatrixFactorization
  from caserec.utils.extra_functions import timed
label_desc: Use image node_id 2 for calling the ItemMSMF obj's underlying member method code with example usage: obj.init_model() without return types