export type PiSessionMessage = {
    id: string;
    role: "user" | "assistant";
    text: string;
};
export type SessionMessage = PiSessionMessage;
export declare const extractPiSessionMessages: (entries: Array<unknown>) => Array<PiSessionMessage>;
export declare const formatMessage: (message: PiSessionMessage) => string;
export declare const formatMessages: (messages: Array<PiSessionMessage>) => string;
export declare const turnKey: (messages: Array<PiSessionMessage>) => string;
export declare const selectMessagesInTurn: (messages: Array<PiSessionMessage>) => PiSessionMessage[];
export declare const selectMessagesForRecall: (messages: Array<PiSessionMessage>, options: {
    maxRecallTurns: number;
    maxRecallChars: number;
}) => PiSessionMessage[];