export type AiMessageRole = 'user' | 'assistant' | 'system' | 'tool';
export declare class AiMessage {
    id: string;
    conversationId: string;
    userId: string;
    role: AiMessageRole;
    content: string;
    toolCalls: any[] | null;
    toolResults: any[] | null;
    ordinal: number;
    createdAt: Date;
}