text: 
  const stylePrefix = "file-area-";
  
  export const EMPTY_VALUE = { id: -1, title: "Default" };
  export const TREE_DATA = [{}];
  export const STYLES = {
      ROOT: `${stylePrefix}root`,
      TITLE: `${stylePrefix}title`,
      DROP_AREA: `${stylePrefix}drop-area`,
      CLOSE: `${stylePrefix}close`,
      CLOSE_DISABLED: `${stylePrefix}close-disabled`
  };
  