export interface AwsCredentials {
    accessKeyId: string;
    secretAccessKey: string;
    sessionToken?: string;
}
export interface AwsRequestInput {
    method: 'GET' | 'POST';
    service: string;
    region: string;
    host: string;
    path: string;
    query?: string;
    headers?: Record<string, string>;
    body?: string;
}
export interface AwsHttpResponse {
    statusCode: number;
    body: string;
    headers: Record<string, string | string[] | undefined>;
}
export type AwsTransport = (input: AwsRequestInput & {
    headers: Record<string, string>;
    body: string;
}) => Promise<AwsHttpResponse>;
export interface RetryOptions {
    /** Maximum number of retry attempts (default: 3) */
    maxRetries?: number;
    /** Base delay in ms for exponential backoff (default: 100) */
    baseDelayMs?: number;
    /** Maximum delay in ms (default: 5000) */
    maxDelayMs?: number;
    /** Whether to retry on 5xx errors (default: true) */
    retryOn5xx?: boolean;
    /** Whether to retry on network errors (default: true) */
    retryOnNetworkError?: boolean;
}
export declare class AwsSignedClient {
    private readonly credentials;
    private readonly transport;
    private readonly retryOptions;
    constructor(credentials: AwsCredentials, transport?: AwsTransport, retryOptions?: RetryOptions);
    request(input: AwsRequestInput): Promise<AwsHttpResponse>;
    private requestOnce;
}
//# sourceMappingURL=client.d.ts.map