import type { StreamFn } from "@mariozechner/pi-agent-core";
export declare function streamWithPayloadPatch(underlying: StreamFn, model: Parameters<StreamFn>[0], context: Parameters<StreamFn>[1], options: Parameters<StreamFn>[2], patchPayload: (payload: Record<string, unknown>) => void): import("@mariozechner/pi-ai").AssistantMessageEventStream | Promise<import("@mariozechner/pi-ai").AssistantMessageEventStream>;