/// <reference types="testcafe" />
import { Image } from './image-utils';
import { ScreenshotLocations } from './file-utils';
import Diagnostics from './diagnostics';
import type { IComparerOptions, SelectorType } from './options';
export declare function tryGetValidScreenshot(t: TestController, element: SelectorType, options: IComparerOptions, locations: ScreenshotLocations, diag: Diagnostics): Promise<{
    equal: boolean;
    screenshot: Image | null;
    patchedByMaskScreenshot: Image | null;
    textMask: Image | null;
}>;