code: function updateUnformattedText( key, value ) {
  	this.element.input[ key ].value = value;
  
  	this.data[ key ] = value;
  }
docs: Update data and DOM objects when the unformatted text is updated, here for backwards compatibility
  
  @private
  @this SnippetPreview
  
  @param {string} key The data key to update.
  @param {string} value The value to update.
  
  @returns {void}