import { PlainObject } from './common';
import { GSFunction } from './interfaces';
type BaseJSON = {
    fn?: string;
    id?: string;
    workflow_name?: string;
    on_error?: OnError;
};
export type WorkflowJSON = BaseJSON & {
    tasks: Array<TaskJSON>;
};
type OnError = {
    tasks: TasksJSON | GSFunction | null;
};
type TasksJSON = Array<TaskJSON> & {
    workflow_name?: string;
};
type TaskJSON = BaseJSON & {
    isEachParallel?: boolean;
    authz?: TasksJSON | GSFunction;
    args: any;
};
export type NativeFunctions = {
    [key: string]: Function | null;
};
/**
 *
 * @param json a workflow or array of yaml tasks or a single yaml task
 * @param workflows all workflows that exist whether loaded yet or in json form and yet to be loaded.
 * @param nativeFunctions
 * @param onError
 * @returns GSFunction or null (in case of com.gs.elif or com.gs.else)
 */
export declare function createGSFunction(json: WorkflowJSON | TasksJSON | TaskJSON, workflows: PlainObject, nativeFunctions: NativeFunctions, onError: OnError | null, location: PlainObject): GSFunction | null;
export type LoadedFunctions = {
    nativeFunctions: NativeFunctions;
    functions: PlainObject;
    success: boolean;
};
export default function loadFunctions(datasources: PlainObject, pathString: string): Promise<LoadedFunctions>;
export {};