export type CommerceRequestDiagnostic = {
    stage: string;
    method: string;
    requestId: string;
    name: string;
    cause?: {
        code: string;
    };
    status?: number;
    attempt: number;
    elapsedMs: number;
    at: string;
};
export declare class CommerceRequestError extends Error {
    readonly diagnostic: CommerceRequestDiagnostic;
    readonly retryable: boolean;
    status?: number;
    code?: string;
    resetOrdinals?: unknown;
    rewriteOrdinals?: unknown;
    constructor(message: string, diagnostic: CommerceRequestDiagnostic, retryable: boolean);
}
type RequestOptions = {
    expiresAt?: string;
    onFailure?: (diagnostic: CommerceRequestDiagnostic) => void;
    onRetry?: (diagnostic: CommerceRequestDiagnostic, delayMs: number) => void;
    onSuccess?: (request: {
        requestId: string;
        stage: string;
    }) => void;
};
type Transport = {
    fetch: typeof fetch;
    sleep: (ms: number, signal?: AbortSignal | null) => Promise<void>;
    now: () => number;
};
export declare const FLOW_C_DELIVERY_RETRY_BUDGET_MS = 60000;
/** Only read-only requests and server-deduplicated handoff deliveries may retry. */
export declare function commerceJson<T>(url: string, token: string, tokenHeader: string, init?: RequestInit, options?: RequestOptions, transport?: Transport): Promise<T>;
export {};