type EnvOptions = {
    type?: 'number' | 'boolean';
};
export declare function env(name: string, options: {
    type: 'number';
}): number;
export declare function env(name: string, options: {
    type: 'boolean';
}): boolean;
export declare function env(name: string, options?: Omit<EnvOptions, 'type'>): string | undefined;
export {};
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