import { within } from "storybook/test";
type Canvas = ReturnType<typeof within>;
/**
 * Structural on purpose — the one thing this helper needs off a
 * composed story. `ComposedStoryFn` is invariant in its `Args`, so
 * naming it here would force every caller to restate the props of
 * the component it is testing.
 */
type MountableStory = {
    run: (context: {
        canvasElement: HTMLElement;
    }) => Promise<void>;
};
export declare const mountStory: (story: MountableStory) => Promise<{
    body: Canvas;
    canvas: Canvas;
    canvasElement: HTMLElement;
}>;
export {};
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