export interface Labeler {
    start: (label: string) => void;
    complete: (label: string) => void;
    fail: (label: string, e: Error | undefined) => void;
    suppressErrors: () => void;
    suppressErrorReporting: () => void;
    enableErrorReporting: () => void;
    enableErrors: () => void;
    indent: number;
    iconPadding: number;
    readonly lastLineLength: number;
}
export declare abstract class LabelerBase {
    get iconPadding(): number;
    set iconPadding(value: number);
    protected _iconPaddingChars: string;
}
export declare enum Labelers {
    none = 0,
    interactive = 1,
    ci = 2
}