--- /dev/null
+var anObject = require('./_an-object')
+ , IE8_DOM_DEFINE = require('./_ie8-dom-define')
+ , toPrimitive = require('./_to-primitive')
+ , dP = Object.defineProperty;
+
+exports.f = require('./_descriptors') ? Object.defineProperty : function defineProperty(O, P, Attributes){
+ anObject(O);
+ P = toPrimitive(P, true);
+ anObject(Attributes);
+ if(IE8_DOM_DEFINE)try {
+ return dP(O, P, Attributes);
+ } catch(e){ /* empty */ }
+ if('get' in Attributes || 'set' in Attributes)throw TypeError('Accessors not supported!');
+ if('value' in Attributes)O[P] = Attributes.value;
+ return O;
+};
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