/**
 * Generic string type but with the given suffix appended to it.
 *
 * @category String
 * @category Package : @augment-vir/common
 * @package [`@augment-vir/common`](https://www.npmjs.com/package/@augment-vir/common)
 */
export type WithSuffix<Suffix extends string> = `${string}${Suffix}`;
/**
 * Suffix for {@link addPercent} and {@link removePercent}.
 *
 * @category String
 * @category Package : @augment-vir/common
 * @package [`@augment-vir/common`](https://www.npmjs.com/package/@augment-vir/common)
 */
export declare const percentSuffix = "%";
/**
 * Suffix for {@link addPx} and {@link removePx}.
 *
 * @category String
 * @category Package : @augment-vir/common
 * @package [`@augment-vir/common`](https://www.npmjs.com/package/@augment-vir/common)
 */
export declare const pxSuffix = "px";
/**
 * Generic string type but with the `'px'` suffix appended to it.
 *
 * @category String
 * @category Package : @augment-vir/common
 * @package [`@augment-vir/common`](https://www.npmjs.com/package/@augment-vir/common)
 */
export type WithPx = WithSuffix<typeof pxSuffix>;
/**
 * Generic string type but with the `'%'` suffix appended to it.
 *
 * @category String
 * @category Package : @augment-vir/common
 * @package [`@augment-vir/common`](https://www.npmjs.com/package/@augment-vir/common)
 */
export type WithPercent = WithSuffix<typeof percentSuffix>;
/**
 * Adds the `'px'` suffix to a string if it does not already exist.
 *
 * @category String
 * @category Package : @augment-vir/common
 * @package [`@augment-vir/common`](https://www.npmjs.com/package/@augment-vir/common)
 */
export declare function addPx(input: number | string): WithPx;
/**
 * Removes the `'px'` suffix from a string if it exists.
 *
 * @category String
 * @category Package : @augment-vir/common
 * @throws `TypeError` if the input can't be converted into a number.
 * @package [`@augment-vir/common`](https://www.npmjs.com/package/@augment-vir/common)
 */
export declare function removePx(input: string): number;
/**
 * Adds the `'%'` suffix to a string if it does not already exist.
 *
 * @category String
 * @category Package : @augment-vir/common
 * @package [`@augment-vir/common`](https://www.npmjs.com/package/@augment-vir/common)
 */
export declare function addPercent(input: number | string): WithPercent;
/**
 * Removes the `'%'` suffix from a string if it exists.
 *
 * @category String
 * @category Package : @augment-vir/common
 * @throws `TypeError` if the input can't be converted into a number.
 * @package [`@augment-vir/common`](https://www.npmjs.com/package/@augment-vir/common)
 */
export declare function removePercent(input: string): number;
/**
 * Adds a suffix to a string if it does not already exist.
 *
 * @category String
 * @category Package : @augment-vir/common
 * @package [`@augment-vir/common`](https://www.npmjs.com/package/@augment-vir/common)
 */
export declare function addSuffix<const Suffix extends string>({ value, suffix, }: {
    value: unknown;
    suffix: Suffix;
}): WithSuffix<Suffix>;
/**
 * Removes a suffix from a string if it exists.
 *
 * @category String
 * @category Package : @augment-vir/common
 * @package [`@augment-vir/common`](https://www.npmjs.com/package/@augment-vir/common)
 */
export declare function removeSuffix<const Suffix extends string>({ value, suffix, }: {
    value: string;
    suffix: Suffix;
}): string;