import { OurRange } from './our-range';
export declare function toCodePoint(input: string): number | null;
export declare function toUpperCaseCodePoint(codePoint: number): number;
export declare function buildCodePointRanges({ caseInsensitive, highCodePoint, lowCodePoint, }: {
    caseInsensitive: boolean;
    highCodePoint: number;
    lowCodePoint: number;
}): readonly OurRange[];