export interface SessionsIndex {
    [sessionKey: string]: {
        sessionId: string;
        sessionFile: string;
    };
}
export interface ModelChangeRecord {
    type: 'model_change';
    provider: string;
    modelId: string;
}
export interface OpenClawUsage {
    input: number;
    output: number;
    cacheRead: number;
    cost: {
        total: number;
    };
}
export interface MessageRecord {
    type: 'message';
    message: {
        role: 'assistant' | 'user' | string;
        usage: OpenClawUsage;
        timestamp: number;
    };
}
export type OpenClawRecord = ModelChangeRecord | MessageRecord;
export declare function isModelChange(r: unknown): r is ModelChangeRecord;
export declare function isMessage(r: unknown): r is MessageRecord;
export declare function isAssistantMessage(r: MessageRecord): boolean;
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