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							- 'use strict';
 
- var isCallable = require('../internals/is-callable');
 
- var isObject = require('../internals/is-object');
 
- var definePropertyModule = require('../internals/object-define-property');
 
- var getPrototypeOf = require('../internals/object-get-prototype-of');
 
- var wellKnownSymbol = require('../internals/well-known-symbol');
 
- var makeBuiltIn = require('../internals/make-built-in');
 
- var HAS_INSTANCE = wellKnownSymbol('hasInstance');
 
- var FunctionPrototype = Function.prototype;
 
- // `Function.prototype[@@hasInstance]` method
 
- // https://tc39.es/ecma262/#sec-function.prototype-@@hasinstance
 
- if (!(HAS_INSTANCE in FunctionPrototype)) {
 
-   definePropertyModule.f(FunctionPrototype, HAS_INSTANCE, { value: makeBuiltIn(function (O) {
 
-     if (!isCallable(this) || !isObject(O)) return false;
 
-     var P = this.prototype;
 
-     if (!isObject(P)) return O instanceof this;
 
-     // for environment w/o native `@@hasInstance` logic enough `instanceof`, but add this:
 
-     while (O = getPrototypeOf(O)) if (P === O) return true;
 
-     return false;
 
-   }, HAS_INSTANCE) });
 
- }
 
 
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