export declare abstract class AOperation {
    /**
     * Your target service key (application, fund, provider) on MeSomb
     *
     * @private
     */
    protected readonly target: string;
    /**
     * Your access key provided by MeSomb
     *
     * @private
     */
    protected readonly accessKey: string;
    /**
     * Your secret key provided by MeSomb
     *
     * @private
     */
    protected readonly secretKey: string;
    protected readonly language: string;
    protected service: string;
    constructor({ target, accessKey, secretKey, language, }: {
        target: string;
        accessKey: string;
        secretKey: string;
        language?: string;
    });
    protected _buildUrl(endpoint: string): string;
    protected _getAuthorization(method: string, endpoint: string, date: Date, nonce: string, headers?: Record<string, string>, body?: Record<string, any> | undefined): string;
    private _processClientException;
    protected executeRequest(method: string, endpoint: string, date: Date, nonce: string, body?: Record<string, any> | null, mode?: string): Promise<any>;
}