import "dotenv/config";
export declare class TypeSafeEnv {
    static getString(key: string): string;
    static getNumber(key: string): number;
    static getBoolean(key: string): boolean;
    static getEnvSpecificConfig(key: string, env: string): string;
    static loadFromFile(filePath: string): void;
}
/**
 * Function to validate environment variables.
 */
export declare function validateEnvironment(requiredVars: string[]): void;
/**
 * Function to list environment variables containing a keyword.
 */
export declare function listEnvironmentVariables(keyword?: string): void;
/**
 * Function to load environment variables from a file.
 */
export declare function loadEnvironmentVariables(filePath: string): Record<string, string> | undefined;