export interface Logger {
    debug: (...args: any[]) => void;
    info: (...args: any[]) => void;
    warn: (...args: any[]) => void;
    error: (...args: any[]) => void;
}
export type ToolSignature<I, O> = {
    input: I;
    output: O;
};
export type ToolRegistry = Record<string, ToolSignature<any, any>>;
export type WorkflowTools<TTools extends ToolRegistry> = {
    [K in keyof TTools]: (input: TTools[K]['input']) => Promise<TTools[K]['output']>;
};
export type StepOptions = {
    retry?: number;
};
export interface StepFn {
    <T>(name: string, fn: () => Promise<T>): Promise<T>;
    <T>(name: string, options: StepOptions, fn: () => Promise<T>): Promise<T>;
}
export interface BaseWorkflowContext<TTools extends ToolRegistry> {
    step: StepFn;
    logger: Logger;
    tools: WorkflowTools<TTools>;
}
export type WorkflowFn<TInput, TOutput, TTools extends ToolRegistry, TContext extends BaseWorkflowContext<TTools> = BaseWorkflowContext<TTools>> = (input: TInput, context: TContext) => Promise<TOutput>;
export declare function createContext<TTools extends ToolRegistry>(tools: WorkflowTools<TTools>, stepFn?: StepFn, logger?: Logger): BaseWorkflowContext<TTools>;
export declare const makeStepFn: () => StepFn;