export declare const SHARED_CONFIG_PATH: string;
export declare const KEYPAIR_PATH: string;
interface HeliusConfig {
    apiKey?: string;
    jwt?: string;
    network?: string;
    projectId?: string;
    preferences?: {
        budget?: 'agent' | 'developer' | 'business' | 'professional';
        complexity?: 'low' | 'medium' | 'high';
    };
}
export declare function loadConfig(): HeliusConfig;
export declare function saveConfig(config: HeliusConfig): void;
export declare function getSharedApiKey(): string | undefined;
export declare function setSharedApiKey(apiKey: string): void;
export declare function getJwt(): string | undefined;
export declare function setJwt(jwt: string): void;
export declare function getPreferences(): {
    budget?: "agent" | "developer" | "business" | "professional";
    complexity?: "low" | "medium" | "high";
};
export declare function savePreferences(prefs: HeliusConfig['preferences']): void;
export declare function keypairExistsOnDisk(): boolean;
export declare function loadKeypairFromDisk(): Uint8Array | null;
export declare function saveKeypairToDisk(secretKey: Uint8Array): void;
export {};