export declare enum RulersConfigUnit {
    Mm = "Mm",
    Inch = "Inch",
    Cm = "Cm",
    Point = "Point",
    Custom = "Custom"
}
export interface IRulersConfig {
    enabled?: boolean;
    unit: RulersConfigUnit;
    customUnitScale?: number;
    origin?: {
        X: number;
        Y: number;
    };
}
export declare function getUnitScale(config: IRulersConfig): number;