code: function (sectionId, state) {
          if (!module.exports.operations.validateState || module.exports.operations.validateState(state)) {
              appState.set('state[' + sectionId + ']', state);
          } else {
              log.error('Unable to update invalid state:', state, 'in section:', sectionId);
          }
      }
docs: Utility method to update state of section