import { Sampler, OpenAPISchema } from './Sampler';
export declare class StringSampler implements Sampler {
    private readonly MAX_PATTERN_SAMPLE_LENGTH;
    private readonly stringFormats;
    sample(schema: OpenAPISchema): any;
    private patternSample;
    private hasInfiniteQuantifier;
    private sampleWithMaxLength;
    private sampleWithMinLength;
    private checkLength;
    private assertLength;
    private checkBoundary;
    private adjustLength;
    private adjustMaxLength;
}