export interface ProfileConfig {
    nvmApiKey?: string;
    environment?: string;
}
export interface Config {
    profiles: {
        [profileName: string]: ProfileConfig;
    };
    activeProfile: string;
}
export declare class ConfigManager {
    private static instance;
    private explorer;
    private configCache?;
    private constructor();
    static getInstance(): ConfigManager;
    load(): Promise<Config | null>;
    save(config: Config, path?: string): Promise<void>;
    get(key?: string, profile?: string): Promise<any>;
    set(key: string, value: string, profile?: string): Promise<void>;
    remove(key: string, profile?: string): Promise<void>;
    getActiveProfile(): Promise<string>;
    setActiveProfile(profileName: string): Promise<void>;
    listProfiles(): Promise<string[]>;
    deleteProfile(profileName: string): Promise<void>;
    getDefaultConfigPath(): string;
}
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