type OutputOf<T extends Task<any, any>> = T extends Task<any, infer Output> ? Output : never;
type OutputsOf<Tasks extends readonly Task<any, any>[]> = {
    [K in keyof Tasks]: Tasks[K] extends Task<any, any> ? OutputOf<Tasks[K]> : never;
};
/**
 * A context that is meant to be extensible.
 * It is passed from the runWorkflow function to each task
 *
 * Extend this interface to add your data to it
 */
export interface WorkflowContext {
}
export interface Task<Deps extends readonly Task<any, any>[], TOutput = any> {
    name: string;
    run: (input: OutputsOf<Deps>, context?: WorkflowContext) => Promise<TOutput>;
    deps?: Deps;
    inputSchema?: unknown;
    outputSchema?: unknown;
}
export declare function defineTask<Deps extends readonly Task<any, unknown>[], Output = unknown>(options: Task<Deps, Output>): Task<Deps, Output>;
export {};