export interface LateInputOptions<T> {
    resolve?: () => T | Promise<T>;
    timeoutMs?: number;
}
export interface LateInput<T = unknown> {
    readonly __tapiLateInput: true;
    set(value: T): Promise<void>;
    waitForProvides(): Promise<void>;
}
type Provider = (runId: string, inputKey: string, value: unknown) => Promise<unknown>;
export declare function lateInput<T = unknown>(options?: LateInputOptions<T>): LateInput<T>;
export declare function isLateInput(value: unknown): value is LateInput<unknown>;
export declare function serializeInputs(inputs: Record<string, unknown> | undefined): {
    bodyInputs: Record<string, unknown> | undefined;
    lateInputs: Array<{
        key: string;
        input: LateInput<unknown>;
    }>;
};
export declare function attachLateInputs(lateInputs: Array<{
    key: string;
    input: LateInput<unknown>;
}>, runId: string, provider: Provider): void;
export {};