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A MethodSignature defines the parameters and return values for a method. The MethodSignature improves traceability while enhancing the ability for automation engines to execute a MethodDef's FormalExpression. A MethodSignature is a required element of every MethodDef. MethodSignature Parameters and ReturnValues are optional. An empty MethodSignature may be used to explicitly indicate that the method does not take any input parameters or return any values. Most Methods use one or more input parameters and return one or more values. MethodDefs associated with ItemRefs may only return a single value. MethodDefs associated with ItemGroupDefs ItemGroupRefs must return one value per ItemRef.
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