export type WriterResult = Array<string | WriterResult>;
export declare class Writer {
    base: string;
    indent: string;
    result: WriterResult;
    constructor();
    static block(cb: (writer: Writer) => void): string;
    static mergeConsecutiveStrings(arr: WriterResult): WriterResult;
    static join(left: WriterResult, right: WriterResult): WriterResult;
    newline(): void;
    write(str: string | Array<string> | WriterResult): void;
    withIndent(cb: () => void, condition?: {
        test: () => boolean;
        wrap?: (cb: () => void) => void;
    }): void;
    withTemp(cb: () => void): WriterResult;
    line(cb: () => void): void;
    toString(): string;
}