import * as z from "zod";
/**
 * A URL protocol as template literal type.
 * Example: "https:" or "ftp:"
 */
export type UrlProtocol = `${string}:`;
/**
 * Creates a Zod schema for validating URLs. By default, it validates that the URL protocol is HTTPS and allow usage of HTTP only locally.
 *
 * @param {Object} options - Configuration options for the schema.
 * @param {UrlProtocol[]} [options.additionalProtocols=[]] - Additional protocols to allow (e.g., "wss:" or "ftp:"). ⚠️ Usage of insecure protocols is discouraged.
 * @param {boolean} [options.allowHttpLocally=true] - Whether to allow HTTP for localhost and 127.0.0.1. Default: true.
 * @returns {z.ZodEffects<z.ZodString, string, string>} - The Zod schema with URL validation.
 *
 * @example
 * const schema = createUrlSchema({
 *   additionalProtocols: ["wss:"],
 *   allowHttpLocally: false
 * });
 *
 * schema.parse("https://example.com"); // Valid
 * schema.parse("wss://example.com");    // Valid
 * schema.parse("http://localhost");     // Invalid if allowHttpLocally is false
 */
export declare const createUrlSchema: ({ additionalProtocols, allowHttpLocally, }: {
    additionalProtocols?: UrlProtocol[];
    allowHttpLocally?: boolean;
}) => z.ZodEffects<z.ZodString, string, string>;
/**
 * Default URL schema that enforces HTTPS and allows HTTP locally.
 *
 * @constant {z.ZodEffects<z.ZodString, string, string>}
 * @example
 * UrlSchema.parse("https://example.com"); // Valid
 * UrlSchema.parse("http://127.0.0.1");   // Valid (localhost exception)
 */
export declare const UrlSchema: z.ZodEffects<z.ZodString, string, string>;