export declare const STYLE_BOLD: number;
export declare const STYLE_DIM: number;
export declare const STYLE_UNDERLINE: number;
export declare const STYLE_INVERSE: number;
export type PackedStyle = number;
export declare function packStyle(style: {
    bold?: boolean;
    dim?: boolean;
    underline?: boolean;
    inverse?: boolean;
    fg?: number;
    bg?: number;
}): PackedStyle;
export declare function foreground(style: PackedStyle): number;
export declare function background(style: PackedStyle): number;
export declare function styleToSgrDelta(previous: PackedStyle, next: PackedStyle, colors?: boolean): string;