MethodWithNext-class: Class MethodWithNext 
Description
 Class of method definitions set up for callNextMethod Objects from the Class
Objects from this class are generated as a side-effect of calls to
  callNextMethod.Slots
    .Data:- Object of class 
"function"; the actual
      function definition.  nextMethod:- Object of class 
"PossibleMethod"
      the method to use in response to a callNextMethod()
      call.  excluded:- Object of class 
"list"; one or more
      signatures excluded in finding the next method.   target:- Object of class 
"signature", from class
      "MethodDefinition"  defined:- Object of class 
"signature", from
      class "MethodDefinition"  generic:- Object of class 
"character"; the function
        for which the method was created.   
 Extends
Class "MethodDefinition", directly.
  Class "function", from data part.
  Class "PossibleMethod", by class "MethodDefinition".
  Class "OptionalMethods", by class "MethodDefinition".Methods
    - findNextMethod
 signature(method = "MethodWithNext"):
      used internally by method dispatch.   - loadMethod
 signature(method = "MethodWithNext"): used
      internally by method dispatch.   - show
 signature(object = "MethodWithNext")