/** @module @twilio-labs/serverless-api/dist/api */
import { FunctionApiResource, FunctionResource, ServerlessResourceConfig, Sid, ClientConfig, FunctionContent, FunctionVersion } from '../types';
import { TwilioServerlessApiClient } from '../client';
/**
 * Creates a new Function instance by calling the API
 *
 * @param {string} name the friendly name of the function to create
 * @param {string} serviceSid the service the function should belong to
 * @param {TwilioServerlessApiClient} client API client
 * @returns {Promise<FunctionApiResource>}
 */
export declare function createFunctionResource(name: string, serviceSid: string, client: TwilioServerlessApiClient): Promise<FunctionApiResource>;
/**
 * Lists all functions associated to a service
 *
 * @export
 * @param {string} serviceSid the service to look up
 * @param {TwilioServerlessApiClient} client API client
 * @returns
 */
export declare function listFunctionResources(serviceSid: string, client: TwilioServerlessApiClient): Promise<FunctionApiResource[]>;
/**
 * Given a list of functions it will create the ones that don't exist and retrieves the others
 *
 * @export
 * @param {FileInfo[]} functions list of functions to get or create
 * @param {string} serviceSid service the functions belong to
 * @param {TwilioServerlessApiClient} client API client
 * @returns {Promise<FunctionResource[]>}
 */
export declare function getOrCreateFunctionResources(functions: ServerlessResourceConfig[], serviceSid: string, client: TwilioServerlessApiClient): Promise<FunctionResource[]>;
/**
 * Uploads a given function by creating a new version, reading the content if necessary and uploading the content
 *
 * @export
 * @param {FunctionResource} fn function to be uploaded
 * @param {string} serviceSid service that the function is connected to
 * @param {TwilioServerlessApiClient} client API client
 * @returns {Promise<Sid>}
 */
export declare function uploadFunction(fn: FunctionResource, serviceSid: string, client: TwilioServerlessApiClient, clientConfig: ClientConfig): Promise<Sid>;
/**
 * Checks if a string is an function SID by checking its prefix and length
 *
 * @export
 * @param {string} str the string to check
 * @returns
 */
export declare function isFunctionSid(str: string): boolean;
export declare function listFunctionVersions(serviceSid: Sid, functionSid: Sid, client: TwilioServerlessApiClient): Promise<FunctionVersion[]>;
export declare function downloadFunctionVersion(serviceSid: Sid, functionSid: Sid, functionVersionSid: Sid, client: TwilioServerlessApiClient): Promise<FunctionContent>;