export declare class ConfigurerInstance<T extends Record<string, string>> {
    config: T;
    private readonly defaultConfig;
    constructor(config: T, defaultConfig: T);
    getString<K extends keyof T>(key: K): string;
    getInt<K extends keyof T>(key: K): number;
    getFloat<K extends keyof T>(key: K): number;
    getBoolean<K extends keyof T>(key: K): boolean;
    getStringArray<K extends keyof T>(key: K): string[];
    getIntArray<K extends keyof T>(key: K): number[];
    getFloatArray<K extends keyof T>(key: K): number[];
    getBooleanArray<K extends keyof T>(key: K): boolean[];
    getJSON<R = unknown, K extends keyof T = keyof T>(key: K): R;
}
export declare class Configurer<T extends Record<string, string>> {
    defaultConfig: T;
    constructor(defaultConfig: T);
    loadConfig(options?: {
        env?: Record<string, string | undefined>;
        obj?: any;
    }): ConfigurerInstance<T>;
    generateExampleObject(): Record<string, unknown>;
}
export type TypeFromConfigurer<C extends ConfigurerInstance<any>> = C extends ConfigurerInstance<infer T> ? T : never;