Flowdock
module_function(...) public

Creates module functions for the named methods. These functions may be called with the module as a receiver, and also become available as instance methods to classes that mix in the module. Module functions are copies of the original, and so may be changed independently. The instance-method versions are made private. If used with no arguments, subsequently defined methods become module functions.

   module Mod
     def one
       "This is one"
     end
     module_function :one
   end
   class Cls
     include Mod
     def callOne
       one
     end
   end
   Mod.one     #=> "This is one"
   c = Cls.new
   c.callOne   #=> "This is one"
   module Mod
     def one
       "This is the new one"
     end
   end
   Mod.one     #=> "This is one"
   c.callOne   #=> "This is the new one"
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