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)
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