code: def export_as_file(self, filepath, hyperparameters):
          
          if not filepath.endswith('.py'):
              filepath += '.py'
  
          file_contents = ''
          file_contents += self.source
          file_contents += '\n\nbase_learner.set_params(**{})\n'.format(hyperparameters)
          file_contents += '\nmeta_feature_generator = "{}"\n'.format(self.meta_feature_generator)
          with open(filepath, 'wb') as f:
              f.write(file_contents.encode('utf8'))
docs: Generates a Python file with the importable base learner set to ``hyperparameters``
  
           This function generates a Python file in the specified file path that contains
           the base learner as an importable variable stored in ``base_learner``. The base
           learner will be set to the appropriate  hyperparameters through ``set_params``.
  
          Args:
              filepath (str, unicode): File path to save file in
  
              hyperparameters (dict): Dictionary to use for ``set_params``