code: function (config) {
  			if (config) {
  				if (config.element) {
  					this.expect.element(config.element).to.be.present;
  				} else {
  					throw new Error('adminUIApp:must specify an element!');
  				}
  			} else {
  				throw new Error('adminUIApp:invalid config specification!');
  			}
  			return this;
  		}
docs: Asserts that the specified home screen element DOM is present.
  
  @param {Object} config The config spec.
  @param {string} config.element The element whose DOM should be present.