import { AnyObject } from '@loopback/repository';
export declare enum MessageMetadataType {
    AI = "ai",
    Tool = "tool",
    User = "user",
    System = "system",
    Attachment = "attachment"
}
export type AiMessageMetadata = {
    type: MessageMetadataType.AI;
};
export type UserMessageMetadata = {
    type: MessageMetadataType.User;
};
export type FileMessageMetadata = {
    type: MessageMetadataType.Attachment;
    fileName: string;
    fileSize: number;
    summary: string;
    messageId: string;
};
export type ToolMessageMetadata = {
    type: MessageMetadataType.Tool;
    toolName: string;
    id: string;
    status?: string;
    [key: string]: AnyObject[string];
};
export type MessageMetadata = ToolMessageMetadata | AiMessageMetadata | FileMessageMetadata | UserMessageMetadata;