export type SupabaseConfig = {
    url: string;
    publishableKey: string;
};
export declare function getSupabaseConfig(): SupabaseConfig;
export type Credentials = {
    supabaseUrl: string;
    publishableKey: string;
    accessToken: string;
    refreshToken: string;
    expiresAt: number | null;
    user: {
        id: string;
        email: string | null;
    };
};
export declare function readCredentials(): Promise<Credentials | null>;
export declare function writeCredentials(credentials: Credentials): Promise<void>;
export declare function clearCredentials(): Promise<void>;
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