import { PatternExpression } from 'regexp-composer';
export declare function roundToDigits(val: number, digits?: number): number;
export declare function listAllCharsMatching(charPattern: PatternExpression): string[];
export declare function extractSuppressions(entries: {
    suppression: string;
}[]): string[];
export declare function getShortLanguageCode(langCode: string): string;
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