docs: def cloud_of_words(path_to_bog, cluster_no, image_path=None):
          """
          Draws the cloud of words representation
  
          :param path_to_bog: path to bag of words
          :param cluster_no: the number of document to be visualized
          :param image_path: path to the image file for the masking, None if no masking is needed
  
          """
          dictionary = GenometricSpace.best_descriptive_meta_dict(path_to_bog, cluster_no)
          GenometricSpace.visualize_cloud_of_words(dictionary, image_path)