import { URLStr } from "./Strings";
import { IDimensions } from "./IDimensions";
export declare namespace Images {
    export function getDimensions(url: URLStr): Promise<IDimensions>;
    interface Constraint {
        readonly maxHeight: number;
        readonly maxWidth: number;
    }
    export function constrain(dimensions: IDimensions, constraint: Constraint): IDimensions;
    export function constrainByHeight(dimensions: IDimensions, maxHeight: number): IDimensions;
    export function constrainByWidth(dimensions: IDimensions, maxWidth: number): IDimensions;
    export {};
}