ruby 2.0

selective_include.rb

module Kernel
  def from(mod, include: [])
    raise TypeError, "argument must be a module" unless Module === mod
#    print include
    include.each do |name, original|
      define_method(name, mod.instance_method(original || name))
    end
  end
  
  def kernal_test
    "Hey this test"
  end
end

module Bar
  def bar
    "bar"
  end
  def baz
    "baz"
  end
end


class Foo
  from Bar, include: {:qux => :bar}
end

f = Foo.new
p f.qux                 #=> "bar
p f.respond_to?(:baz)   #=> false

p f.kernal_test #So kernal method can be called from both object and the class