import type { UppercaseWarning } from '../../config/types.js';
/**
 * Print warnings for environment variable keys that are not uppercase.
 *
 * @param warnings - List of non-uppercase env keys
 * @param comparedAgainst - The .env file name being checked
 * @param strict - Whether strict mode is enabled
 */
export declare function printUppercaseWarning(warnings: UppercaseWarning[], comparedAgainst: string, strict?: boolean): void;
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