import type { CartLine, Storage, StandardApi } from '@shopify/ui-extensions/customer-account';
/**
 * Creates a mock `CartLine` with sensible defaults.
 *
 * Pass a partial override to customize any field.
 */
export declare function createCartLine(overrides?: Partial<CartLine>): CartLine;
/**
 * Creates a mock `Storage` instance.
 *
 * Optionally accepts a `Record<string, unknown>` of initial entries.
 */
export declare function createStorage(initialEntries?: Record<string, unknown>): Storage;
/**
 * Maps each customer account mutation API name to its result type.
 */
export interface CustomerAccountMutationResults {
    applyTrackingConsentChange: Awaited<ReturnType<StandardApi['applyTrackingConsentChange']>>;
}
export declare function createResult<K extends keyof CustomerAccountMutationResults>(mutation: K, result?: Partial<CustomerAccountMutationResults[K]>): CustomerAccountMutationResults[K];
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