import { MaybeGemVersion } from './ruby/gem-version';
export { valid, prerelease, major, minor, patch, inc };
declare type Segment = string | number;
declare const inc: () => never;
declare function valid(v: MaybeGemVersion): string | null;
declare function prerelease(v: MaybeGemVersion): Segment[] | null;
declare function major(v: MaybeGemVersion): Segment | null;
declare function minor(v: MaybeGemVersion): Segment | null;
declare function patch(v: MaybeGemVersion): Segment | null;