   ## Examples
 
       defmodule Example do
-        Module.defines? __MODULE__, {:version, 0} #=> false
+        Module.defines?(__MODULE__, {:version, 0}) #=> false
         def version, do: 1
-        Module.defines? __MODULE__, {:version, 0} #=> true
+        Module.defines?(__MODULE__, {:version, 0}) #=> true
       end
 
   """

  ## Examples

      defmodule MyModule do
        Module.put_attribute __MODULE__, :custom_threshold_for_lib, 10
        Module.delete_attribute __MODULE__, :custom_threshold_for_lib
      end

  """


      defmodule Foo do
        contents = quote do: (def sum(a, b), do: a + b)
        Module.eval_quoted(__MODULE__, contents)
      end

      Foo.sum(1, 2) #=> 3
