import { CharacterInsDelInterface } from './CharacterInsDelInterface';
import { CharacterSubstitutionInterface } from './CharacterSubstitutionInterface';
import { StringDistance } from './interfaces/StringDistance';
export declare class WeightedLevenshtein implements StringDistance {
    private charsub;
    private charchange?;
    constructor(charsub: CharacterSubstitutionInterface, charchange?: CharacterInsDelInterface | undefined);
    distance(s1: string, s2: string, limit?: number): number;
    private insertionCost;
    private deletionCost;
}