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class_variable_set 

        # Module.class_variable_set

(from ruby core)
---
    obj.class_variable_set(symbol, obj)    -> obj
    obj.class_variable_set(string, obj)    -> obj

---

Sets the class variable named by *symbol* to the given object. If the
class variable name is passed as a string, that string is converted to a
symbol.

    class Fred
      @@foo = 99
      def foo
        @@foo
      end
    end
    Fred.class_variable_set(:@@foo, 101)     #=> 101
    Fred.new.foo                             #=> 101

This is MURDOC! A Ruby documentation browser inspired by Smalltalk-80. It allows you to learn about Ruby by browsing through its class hierarchies, and see any of its methods.