export declare class JSONFormatter {
    whitespace: number | '\t';
    /**
     * JSONFormatter constructor
     * Use this as constructor for tabulation and lines.
     * @param options
     * @param whitespace number, "tab" or "\t". Number means how much spaces to use after. "tab" is tabulation.
     */
    constructor(options?: {
        whitespace?: number | 'tab' | '\t' | undefined;
    } | undefined);
}