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						- var baseIsNative = require('./_baseIsNative'),
 -     isMaskable = require('./_isMaskable');
 - 
 - /** Error message constants. */
 - var CORE_ERROR_TEXT = 'Unsupported core-js use. Try https://npms.io/search?q=ponyfill.';
 - 
 - /**
 -  * Checks if `value` is a pristine native function.
 -  *
 -  * **Note:** This method can't reliably detect native functions in the presence
 -  * of the core-js package because core-js circumvents this kind of detection.
 -  * Despite multiple requests, the core-js maintainer has made it clear: any
 -  * attempt to fix the detection will be obstructed. As a result, we're left
 -  * with little choice but to throw an error. Unfortunately, this also affects
 -  * packages, like [babel-polyfill](https://www.npmjs.com/package/babel-polyfill),
 -  * which rely on core-js.
 -  *
 -  * @static
 -  * @memberOf _
 -  * @since 3.0.0
 -  * @category Lang
 -  * @param {*} value The value to check.
 -  * @returns {boolean} Returns `true` if `value` is a native function,
 -  *  else `false`.
 -  * @example
 -  *
 -  * _.isNative(Array.prototype.push);
 -  * // => true
 -  *
 -  * _.isNative(_);
 -  * // => false
 -  */
 - function isNative(value) {
 -   if (isMaskable(value)) {
 -     throw new Error(CORE_ERROR_TEXT);
 -   }
 -   return baseIsNative(value);
 - }
 - 
 - module.exports = isNative;
 
 
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