import type { ChatStorage } from "./chat-storage.js";
import type { ChatApiSuccess, ChatMessageInput } from "./chat-api-types.js";
import type { ChatMessage } from "./types/chat.js";
export declare function persistChatMessage(input: {
    storage: ChatStorage;
    now: () => string;
    message: ChatMessageInput;
    action: "messagePersist" | "providerMessage";
}): Promise<{
    message: ChatMessage;
    meta: ChatApiSuccess<ChatMessage>["meta"];
}>;