/** One parsed unicode-range interval in numeric form (inclusive). */
export type UnicodeInterval = Readonly<{
    end: number;
    start: number;
}>;
/** Parsed unicode-range descriptor preserving original text for reporting. */
export type UnicodeRangeSet = Readonly<{
    displayValue: string;
    intervals: readonly UnicodeInterval[];
}>;
/** Return true when any interval from the left set overlaps with the right set. */
export declare function hasOverlappingIntervals(leftIntervals: readonly UnicodeInterval[], rightIntervals: readonly UnicodeInterval[]): boolean;
/** Parse one `unicode-range` descriptor value into numeric intervals. */
export declare function parseUnicodeRangeSet(value: string): undefined | UnicodeRangeSet;
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