export declare function isTransportError(err: unknown): boolean;
export interface RateLimitInfo {
    remaining: number;
    limit: number;
    resetAt: number;
    used?: number;
    resource?: string;
    /** Exact GraphQL query cost when the operation selected rateLimit.cost. */
    cost?: number;
    /** Exact GraphQL node count when the operation selected rateLimit.nodeCount. */
    nodeCount?: number;
}
export declare function sanitizeBody(body: string): string;
export declare function redactToken(body: string): string;
export declare function redactUrl(url: string): string;
export declare function parseRateLimit(headers: Headers): RateLimitInfo | null;
export declare function parseRetryAfter(headers: Headers): number | undefined;