export declare function parseRegex(source: string): RegExp;
export declare function isXVersion(version: string): boolean;
export declare function pipe<TArgs extends any[], R1, R2, R3, R4, R5, R6, R7>(f1: (...args: TArgs) => R1, f2: (a: R1) => R2, f3: (a: R2) => R3, f4: (a: R3) => R4, f5: (a: R4) => R5, f6: (a: R5) => R6, f7: (a: R6) => R7): (...args: TArgs) => R7;
export declare function pipe<TArgs extends any[], R1, R2, R3, R4, R5, R6>(f1: (...args: TArgs) => R1, f2: (a: R1) => R2, f3: (a: R2) => R3, f4: (a: R3) => R4, f5: (a: R4) => R5, f6: (a: R5) => R6): (...args: TArgs) => R6;
export declare function pipe<TArgs extends any[], R1, R2, R3, R4, R5>(f1: (...args: TArgs) => R1, f2: (a: R1) => R2, f3: (a: R2) => R3, f4: (a: R3) => R4, f5: (a: R4) => R5): (...args: TArgs) => R5;
export declare function pipe<TArgs extends any[], R1, R2, R3, R4>(f1: (...args: TArgs) => R1, f2: (a: R1) => R2, f3: (a: R2) => R3, f4: (a: R3) => R4): (...args: TArgs) => R4;
export declare function pipe<TArgs extends any[], R1, R2, R3>(f1: (...args: TArgs) => R1, f2: (a: R1) => R2, f3: (a: R2) => R3): (...args: TArgs) => R3;
export declare function pipe<TArgs extends any[], R1, R2>(f1: (...args: TArgs) => R1, f2: (a: R1) => R2): (...args: TArgs) => R2;
export declare function pipe<TArgs extends any[], R1>(f1: (...args: TArgs) => R1): (...args: TArgs) => R1;
export declare function extractComparator(comparatorString: string): RegExpMatchArray | null;
export declare function combineVersion(major: string, minor: string, patch: string, preRelease: string): string;