/**
 * Create an ESM module that exports the helper with an empty sourcemap.
 */
export function createRequireHelperModule(): string;
/**
 * Check if there are chanches that the provided code is a commonjs module.
 * @param {string} code
 */
export function maybeCommonjsModule(code: string): Promise<boolean>;
/**
 * Check if there are chanches that the provided code is both a esm and commonjs module.
 * @param {string} code
 */
export function maybeMixedModule(code: string): Promise<boolean>;
/**
 * @typedef {(specifier: string) => boolean|Promise<boolean>} IgnoreCallback
 */
/**
 * @typedef {Object} TransformOptions
 * @property {boolean} [sourcemap]
 * @property {string} [source]
 * @property {boolean} [sourcesContent]
 * @property {IgnoreCallback} [ignore]
 * @property {boolean} [helperModule]
 * @property {boolean} [ignoreTryCatch]
 */
/**
 * @param {string} code
 * @param {TransformOptions|undefined} options
 */
export function transform(code: string, { sourcemap, source, sourcesContent, ignore, helperModule, ignoreTryCatch }?: TransformOptions | undefined): Promise<{
    code: string;
    map: any;
} | undefined>;
/**
 * Wrap with a try catch block any require call.
 * @param {string} code
 * @param {{ sourcemap?: boolean, source?: string; sourcesContent?: boolean }} options
 */
export function wrapDynamicRequire(code: string, { sourcemap, source, sourcesContent }?: {
    sourcemap?: boolean;
    source?: string;
    sourcesContent?: boolean;
}): Promise<{
    code: string;
    map: any;
} | undefined>;
export const REQUIRE_REGEX: RegExp;
export const UMD_REGEXES: RegExp[];
export const UMD_GLOBALS: string[];
export const ESM_KEYWORDS: RegExp;
export const EXPORTS_KEYWORDS: RegExp;
export const CJS_KEYWORDS: RegExp;
export const THIS_PARAM: RegExp;
export const REQUIRE_FUNCTION: "__cjs_default__";
export const HELPER_MODULE: "__cjs_helper__.js";
export const GLOBAL_HELPER: "((typeof window !== 'undefined' && window) ||\n(typeof self !== 'undefined' && self) ||\n(typeof global !== 'undefined' && global) ||\n(typeof globalThis !== 'undefined' && globalThis) ||\n{})";
export const REQUIRE_HELPER: "function __cjs_default__(requiredModule) {\n    var Object = ((typeof window !== 'undefined' && window) ||\n(typeof self !== 'undefined' && self) ||\n(typeof global !== 'undefined' && global) ||\n(typeof globalThis !== 'undefined' && globalThis) ||\n{}).Object;\n    var isEsModule = false;\n    var specifiers = Object.create(null);\n    var hasNamedExports = false;\n    var hasDefaultExport = false;\n\n    Object.defineProperty(specifiers, '__esModule', {\n        value: true,\n        enumerable: false,\n        configurable: true,\n    });\n\n    if (requiredModule) {\n        var names = Object.getOwnPropertyNames(requiredModule);;\n        names.forEach(function(k) {\n            if (k === 'default') {\n                hasDefaultExport = true;\n            } else if (!hasNamedExports && k != '__esModule') {\n                try {\n                    hasNamedExports = requiredModule[k] != null;\n                } catch (err) {\n                    //\n                }\n            }\n            Object.defineProperty(specifiers, k, {\n                get: function () {\n                    return requiredModule[k];\n                },\n                enumerable: true,\n                configurable: false,\n            });\n        });\n        if (Object.getOwnPropertySymbols) {\n            var symbols = Object.getOwnPropertySymbols(requiredModule);\n            symbols.forEach(function(k) {\n                Object.defineProperty(specifiers, k, {\n                    get: function () {\n                        return requiredModule[k];\n                    },\n                    enumerable: false,\n                    configurable: false,\n                });\n            });\n        }\n\n        Object.preventExtensions(specifiers);\n        Object.seal(specifiers);\n        if (Object.freeze) {\n            Object.freeze(specifiers);\n        }\n    }\n\n    if (hasNamedExports) {\n        return specifiers;\n    }\n\n    if (hasDefaultExport) {\n        if (Object.isExtensible(specifiers.default) && !('default' in specifiers.default)) {\n            Object.defineProperty(specifiers.default, 'default', {\n                value: specifiers.default,\n                configurable: false,\n                enumerable: false,\n            })\n        }\n        return specifiers.default;\n    }\n\n    return specifiers;\n}\n";
export type IgnoreCallback = (specifier: string) => boolean | Promise<boolean>;
export type TransformOptions = {
    sourcemap?: boolean | undefined;
    source?: string | undefined;
    sourcesContent?: boolean | undefined;
    ignore?: IgnoreCallback | undefined;
    helperModule?: boolean | undefined;
    ignoreTryCatch?: boolean | undefined;
};