export declare function loadRequirements(): string | null;
export declare function executeFlaskPull(): void;
export declare function executeFlaskPush(targetLanguages: string[]): void;
/**
 * get target language by looking at po file header
 * if not found then look at file path for a locale
 * @param sourceFilePath
 * @param headers
 * @param allowedLanguages
 */
export declare function getTargetLang(sourceFilePath: string, headers: any, allowedLanguages: Set<string>): string | null;