export interface StreamSpinnerOptions {
    readonly err: NodeJS.WritableStream & {
        isTTY?: boolean | undefined;
    };
    readonly columns: number;
    readonly unicode: boolean;
    readonly enabled?: boolean | undefined;
}
export declare class StreamSpinner {
    private readonly options;
    private readonly frames;
    private readonly active;
    private frame;
    private label;
    private painted;
    constructor(options: StreamSpinnerOptions);
    get isActive(): boolean;
    tick(label: string): void;
    clear(): void;
}