ObjectsWithPackage-class: A Vector of Object Names, with associated Package Names 
Description
  This class of objects is used to represent ordinary character string
  object names, extended with a package slot naming the package
  associated with each object.
Objects from the Class
The function getGenerics returns an object of this class.Slots
    .Data:- Object of class 
"character": the
      object names.  package:- Object of class 
"character" the
      package names.  
 Extends
Class "character", from data part.
  Class "vector", by class "character".See Also
 Methods for general background.