/**
 * Plain text export plugin (messages only)
 *
 * @public exported from `@promptbook/components`
 */
export declare const txtSaveFormatDefinition: {
    readonly formatName: "txt";
    readonly label: "Plain Text";
    readonly getContent: ({ messages }: {
        readonly title: string;
        readonly messages: readonly import("../../types/ChatMessage").ChatMessage[];
        readonly participants: readonly import("../../types/ChatParticipant").ChatParticipant[];
    }) => string;
    readonly mimeType: "text/plain";
    readonly fileExtension: "txt";
};