import Core = require('xmind-model');
export interface AbstractWorkbook {
    /**
     * @description Create a instance of Sheet
     * @param {String} sheetTitle
     * @param {String} [centralTopicTitle]
     */
    createSheet(sheetTitle: string, centralTopicTitle: string): Core.Sheet;
    /**
     * @description Set theme color
     * @param {String} sheetTitle
     * @param {String} themeName
     */
    theme(sheetTitle: string, themeName: string): boolean;
    /**
     * @description Formatting Mind-map data as String
     * @return {String}
     */
    toString(): string;
    /**
     * @description Formatting Mind-map data as JSON
     * @return {Object}
     */
    toJSON(): object;
    /**
     * @description Validate Mind-map data
     * @return {status: boolean, errors: Array<object>} The `status` indicates result and you also can get errors
     */
    validate(): {
        status: boolean;
        errors: Array<object>;
    };
}