import type * as lark from '@larksuiteoapi/node-sdk';
/**
 * Where an outbound message goes, and how it threads back to its trigger.
 *
 * A target carries only what the platform needs to place a message: which
 * chat it lands in, and which existing message it threads under. Mentions are
 * written inline in the message body using Feishu's own `<at>` syntax, so
 * they are not a separate addressing concern.
 */
export interface OutboundTarget {
    /** Destination chat_id — required. Today: the inbound `source_chat_id`. */
    chatId: string;
    /**
     * message_id to reply under, so a group reply threads beneath the original
     * question. Maps from the inbound `source_message_id`. Optional: when unset,
     * the transport sends a fresh top-level message.
     */
    replyToMessageId?: string;
}
export interface MessageSendResponse {
    code?: number;
    msg?: string;
    /**
     * `chat_id`/`thread_id` are present on every `im/v1/messages` create/reply
     * response the platform sends, alongside `message_id`.
     */
    data?: {
        message_id?: string;
        chat_id?: string;
        thread_id?: string;
    };
    error?: {
        log_id?: string;
    };
}
/**
 * Send one already-serialized card as an `interactive` message.
 *
 * Create versus reply is the only addressing distinction the platform makes
 * here, so it is the only branch: an AbortSignal rides along with either.
 *
 * A rejection carrying a Feishu response envelope, and a resolved body with a
 * nonzero business code, are both failed sends. Both are rethrown as one
 * description naming the operation and the platform's own status / code /
 * reason / log id, because everything above this boundary — channel logs,
 * MCP results, Core's failure text — projects an error to its message alone.
 * Errors without such an envelope (cancellation, network) keep their identity.
 */
export declare function sendFeishuMessage(client: lark.Client, target: OutboundTarget, content: string, signal?: AbortSignal): Promise<MessageSendResponse>;
//# sourceMappingURL=outbound-message.d.ts.map