declare function buildNgramIndex(text: string): Map<string, number[]>;
declare function ngrams(text: string): Generator<readonly [string, number], void, unknown>;
declare function collectBoundaryVotes(query: string, document: string): {
    startVotes: number[];
    endVotes: number[];
} | null;
declare function findBoundaries(query: string, document: string): {
    start: number;
    end: number;
} | null;

export { buildNgramIndex, collectBoundaryVotes, findBoundaries, ngrams };