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				@@ -938,11 +938,11 @@ category: 'accessing', 
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				 fn: function (anIndex,aBlock,anotherBlock){ 
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				 var self=this; 
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				 return smalltalk.withContext(function($ctx1) {  
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				-_st(self)._subclassReponsibility(); 
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				+_st(self)._subclassResponsibility(); 
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				 return self}, function($ctx1) {$ctx1.fill(self,"at:ifPresent:ifAbsent:",{anIndex:anIndex,aBlock:aBlock,anotherBlock:anotherBlock},smalltalk.IndexableCollection)})}, 
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				 args: ["anIndex", "aBlock", "anotherBlock"], 
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				-source: "at: anIndex ifPresent: aBlock ifAbsent: anotherBlock\x0a\x09\x22Lookup the given index in the receiver.\x0a\x09If it is present, answer the value of evaluating aBlock with the value stored at anIndex.\x0a\x09Otherwise, answer the value of anotherBlock.\x22\x0a\x0a\x09self subclassReponsibility", 
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				-messageSends: ["subclassReponsibility"], 
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				+source: "at: anIndex ifPresent: aBlock ifAbsent: anotherBlock\x0a\x09\x22Lookup the given index in the receiver.\x0a\x09If it is present, answer the value of evaluating aBlock with the value stored at anIndex.\x0a\x09Otherwise, answer the value of anotherBlock.\x22\x0a\x0a\x09self subclassResponsibility", 
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				+messageSends: ["subclassResponsibility"], 
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				 referencedClasses: [] 
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				 }), 
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				 smalltalk.IndexableCollection); 
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