def get_feature_names(self):
return ['<STR_LIT>', '<STR_LIT>'] + [f'<STR_LIT>' for x in range(<NUM_LIT:1>, self.max_solvents + <NUM_LIT:1>)] +[f'<STR_LIT>' for x in range(<NUM_LIT:1>, self.max_solvents + <NUM_LIT:1>)]<EOL>
Get feature names.

        Returns
        -------
        feature_names : list of strings
            Names of the features produced by transform.