import type { Attribute, AttributeChange, AttributeChangeResult, RenderExtensionPoint } from '@shopify/checkout-ui-extensions';
/**
 * Returns the proposed `attributes` applied to the checkout.
 */
export declare function useAttributes<ID extends RenderExtensionPoint = RenderExtensionPoint>(): Attribute[] | undefined;
/**
 * Returns the values for the specified `attributes` applied to the checkout.
 *
 * @param keys - An array of attribute keys.
 */
export declare function useAttributeValues<ID extends RenderExtensionPoint = RenderExtensionPoint>(keys: string[]): (string | undefined)[];
/**
 * Returns a function to mutate the `attributes` property of the checkout.
 */
export declare function useApplyAttributeChange<ID extends RenderExtensionPoint = RenderExtensionPoint>(): (change: AttributeChange) => Promise<AttributeChangeResult>;
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