/**
 * Represents a client for performing communication.
 * @interface
 */
export interface INetworkClient {
    /**
     * Get data asynchronously.
     * @param additionalPath An additional path append to the endpoint path.
     * @param additionalHeaders Extra headers to send with the request.
     * @returns Promise which resolves to the object returned or rejects with error.
     */
    get(additionalPath?: string, additionalHeaders?: {
        [header: string]: string;
    }): Promise<string>;
    /**
     * Post data asynchronously.
     * @param additionalPath An additional path append to the endpoint path.
     * @param data The data to send.
     * @param additionalHeaders Extra headers to send with the request.
     * @returns Promise which resolves to the object returned or rejects with error.
     */
    post(data: string, additionalPath?: string, additionalHeaders?: {
        [header: string]: string;
    }): Promise<string>;
    /**
     * Get data as JSON asynchronously.
     * @typeparam U The generic type for the returned object.
     * @param additionalPath An additional path append to the endpoint path.
     * @param additionalHeaders Extra headers to send with the request.
     * @returns Promise which resolves to the object returned or rejects with error.
     */
    getJson<U>(additionalPath?: string, additionalHeaders?: {
        [header: string]: string;
    }): Promise<U>;
    /**
     * Post data as JSON asynchronously.
     * @typeparam T The generic type for the object to send.
     * @typeparam U The generic type for the returned object.
     * @param data The data to send.
     * @param additionalPath An additional path append to the endpoint path.
     * @param additionalHeaders Extra headers to send with the request.
     * @returns Promise which resolves to the object returned or rejects with error.
     */
    postJson<T, U>(data: T, additionalPath?: string, additionalHeaders?: {
        [header: string]: string;
    }): Promise<U>;
    /**
     * Perform a request asynchronously.
     * @param method The method to send the data with.
     * @param data The data to send.
     * @param additionalPath An additional path append to the endpoint path.
     * @param additionalHeaders Extra headers to send with the request.
     * @returns Promise which resolves to the object returned or rejects with error.
     */
    doRequest(method: string, data: string, additionalPath?: string, additionalHeaders?: {
        [header: string]: string;
    }): Promise<string>;
}