/**
 * Typo mutation - introduces typos to test robustness
 */
import { type CvssScore } from '../severity';
import type { Mutation } from './index';
export declare class TypoMutation implements Mutation {
    readonly name = "typo";
    readonly description = "Introduces random typos to test input robustness";
    readonly severity: "low";
    readonly cvssScore: CvssScore;
    private typoRate;
    constructor(typoRate?: number);
    mutate(prompt: string): string;
    private introduceTypo;
    private getNearbyKey;
}
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