How to use the react-tools/build/modules/React.renderComponent function in react-tools

function _renderPage(page, doc, cb) {
  if (doc.readyState === 'interactive' || doc.readyState === 'complete')
    cb(null, React.renderComponent(page, doc));
  else
    window.addEventListener('DOMContentLoaded', function() {
      cb(null, React.renderComponent(page, doc));
    });
}

function renderComponent(component, element, cb) {
  try {
    component = React.renderComponent(component, element);
  } catch (err) {
    return cb(err);
  }
  cb(null, component);
}

clientRender: function(moduleName, props) {
    var module = require(moduleName);
    var component = module(props);
    React.renderComponent(component, document);
  }
};