import * as z from "zod/v4";
import { InternChatMessageContent, InternChatMessageContent$Outbound } from "./internchatmessagecontent.js";
/**
 * A user message. When it is the last message its text is the prompt for a new run, at most 32000 characters.
 */
export type InternChatUserMessage = {
    /**
     * Message text as a string or a list of text parts. Assistant history may carry null. Only the last message is read; earlier messages are accepted so ordinary clients can resend history.
     */
    content: InternChatMessageContent | null;
    role: "user";
};
/** @internal */
export type InternChatUserMessage$Outbound = {
    content: InternChatMessageContent$Outbound | null;
    role: "user";
};
/** @internal */
export declare const InternChatUserMessage$outboundSchema: z.ZodType<InternChatUserMessage$Outbound, InternChatUserMessage>;
export declare function internChatUserMessageToJSON(internChatUserMessage: InternChatUserMessage): string;
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