| LocalVariables | 
 A set of named variables that can grow over time. 
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| LocalVariables.L1<X1> | 
 A set of one local variables. 
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| LocalVariables.L2<X1,X2> | 
 A set of two local variables. 
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| LocalVariables.L3<X1,X2,X3> | 
 A set of three local variables. 
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| LocalVariables.L4<X1,X2,X3,X4> | 
 A set of four local variables. 
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| LocalVariables.L5<X1,X2,X3,X4,X5> | 
 A set of five local variables. 
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| LocalVariables.L6<X1,X2,X3,X4,X5,X6> | 
 A set of six local variables. 
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| LocalVariables.L7<X1,X2,X3,X4,X5,X6,X7> | 
 A set of seven local variables. 
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| LocalVariables.L8<X1,X2,X3,X4,X5,X6,X7,X8> | 
 A set of eight local variables. 
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| LocalVariables.L9<X1,X2,X3,X4,X5,X6,X7,X8,X9> | 
 A set of nine local variables. 
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| StageChain<T,R> | 
Decorates a  CompletableFuture and introduces the idea of an eventual return value that one wishes to obtain
 eventually.  
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| XCompletionStageUtils | 
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| XStageChainUtils | 
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