/** Common HTTP status codes used in CCIP SDK. */
export declare const HttpStatus: {
    readonly OK: 200;
    readonly BAD_REQUEST: 400;
    readonly UNAUTHORIZED: 401;
    readonly FORBIDDEN: 403;
    readonly NOT_FOUND: 404;
    readonly TOO_MANY_REQUESTS: 429;
    readonly INTERNAL_SERVER_ERROR: 500;
    readonly BAD_GATEWAY: 502;
    readonly SERVICE_UNAVAILABLE: 503;
    readonly GATEWAY_TIMEOUT: 504;
};
/** Union type of HTTP status codes. */
export type HttpStatus = (typeof HttpStatus)[keyof typeof HttpStatus];
/** Returns true if status code indicates a server error (5xx). */
export declare function isServerError(status: number): boolean;
/** Returns true if status code indicates a transient error (429 or 5xx). */
export declare function isTransientHttpStatus(status: number): boolean;
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