interface Credentials {
    access_token: string;
    refresh_token: string;
    expires_at?: number;
    local_agent_keys?: Record<string, string>;
}
export declare function loadCredentials(): Credentials | null;
export declare function saveCredentials(creds: Credentials): void;
export declare function isTokenExpired(): boolean;
export declare function clearCredentials(): void;
export declare function getLocalAgentKey(agentID: string): string | undefined;
export declare function saveLocalAgentKey(agentID: string, apiKey: string): void;
export {};
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