import semver from 'semver';
export { SemVer } from 'semver';
/**
 * Returns whether the given semver version satisfies the given range. Notably
 * this supports prerelease versions so that "2.0.0-rc.0" satisfies the range
 * ">=1.0.0", for example.
 *
 * This function exists because the semver.satisfies method does not include
 * pre releases. This means ranges such as * would not satisfy 1.0.0-rc. The
 * includePrerelease flag has a weird behavior and cannot be used (if you want
 * to try it out, just run the `semverUtils` testsuite using this flag instead
 * of our own implementation, and you'll see the failing cases).
 *
 * See https://github.com/yarnpkg/berry/issues/575 for more context.
 */
export declare function satisfiesWithPrereleases(version: string | null, range: string, loose?: boolean): boolean;
/**
 * A cached version of `new semver.Range(potentialRange)` that returns `null` on invalid ranges
 */
export declare function validRange(potentialRange: string): semver.Range | null;
/**
 * Cleans the potential version by removing leading/trailing whitespace and '=v' prefix
 * @returns A valid SemVer string, otherwise null
 */
export declare function clean(potentialVersion: string): string | null;
export type Comparator = {
    gt: [`>` | `>=`, semver.SemVer] | null;
    lt: [`<` | `<=`, semver.SemVer] | null;
};
export declare function getComparator(comparators: semver.Comparator): Comparator;
export declare function mergeComparators(comparators: Array<Comparator>): {
    gt: [">" | ">=", semver.SemVer] | null;
    lt: ["<" | "<=", semver.SemVer] | null;
} | null;
export declare function stringifyComparator(comparator: Comparator): string;
export declare function simplifyRanges(ranges: Array<string>): string | null;