/**
 * Returns a pluralized string based on a count.
 *
 * @example
 * pluralize(1, "apple") // "1 apple"
 * pluralize(3, "apple") // "3 apples"
 * pluralize(2, "person", "people") // "2 people"
 * pluralize(0, "item") // "0 items"
 *
 * @param count The number of items.
 * @param singular The singular noun.
 * @param plural Optional explicit plural form.
 * @param includeCount Whether to prefix with the count (default: true).
 * @returns Pluralized string.
 */
export declare function pluralize(count: number, singular: string, plural?: string, includeCount?: boolean): string;