docs: def update_settings(self, kwargs_model={}, kwargs_constraints={}, kwargs_likelihood={}, lens_add_fixed=[],
                       source_add_fixed=[], lens_light_add_fixed=[], ps_add_fixed=[], cosmo_add_fixed=[], lens_remove_fixed=[],
                       source_remove_fixed=[], lens_light_remove_fixed=[], ps_remove_fixed=[], cosmo_remove_fixed=[],
                          change_source_lower_limit=None, change_source_upper_limit=None):
          """
          updates lenstronomy settings "on the fly"
  
          :param kwargs_model: kwargs, specified keyword arguments overwrite the existing ones
          :param kwargs_constraints: kwargs, specified keyword arguments overwrite the existing ones
          :param kwargs_likelihood: kwargs, specified keyword arguments overwrite the existing ones
          :param lens_add_fixed: [[i_model, ['param1', 'param2',...], [...]]
          :param source_add_fixed: [[i_model, ['param1', 'param2',...], [...]]
          :param lens_light_add_fixed: [[i_model, ['param1', 'param2',...], [...]]
          :param ps_add_fixed: [[i_model, ['param1', 'param2',...], [...]]
          :param cosmo_add_fixed: ['param1', 'param2',...]
          :param lens_remove_fixed: [[i_model, ['param1', 'param2',...], [...]]
          :param source_remove_fixed: [[i_model, ['param1', 'param2',...], [...]]
          :param lens_light_remove_fixed: [[i_model, ['param1', 'param2',...], [...]]
          :param ps_remove_fixed: [[i_model, ['param1', 'param2',...], [...]]
          :param cosmo_remove_fixed: ['param1', 'param2',...]
          :return: 0, the settings are overwritten for the next fitting step to come
          """
          self._updateManager.update_options(kwargs_model, kwargs_constraints, kwargs_likelihood)
          self._updateManager.update_fixed(self._lens_temp, self._source_temp, self._lens_light_temp, self._ps_temp,
                                           self._cosmo_temp, lens_add_fixed, source_add_fixed, lens_light_add_fixed,
                                           ps_add_fixed, cosmo_add_fixed, lens_remove_fixed, source_remove_fixed,
                                           lens_light_remove_fixed, ps_remove_fixed, cosmo_remove_fixed)
          self._updateManager.update_limits(change_source_lower_limit, change_source_upper_limit)
          return 0