   end
 
   @doc """
-  Concatenates two aliases and returns a new alias only
-  if the alias was already referenced. If the alias was not
-  referenced yet, fails with `ArgumentError`.
+  Concatenates two aliases and returns a new alias only if the alias was
+  already referenced.
+
+  If the alias was not referenced yet, fails with `ArgumentError`.
   It handles char lists, binaries and atoms.
 
   ## Examples


  @doc """
  Makes the given functions in `module` overridable.
  An overridable function is lazily defined, allowing a
  developer to customize it. See `Kernel.defoverridable/1` for
  more information and documentation.


  @doc """
  Checks if the module defines the given function or macro.

  Use `defines?/3` to assert for a specific type.

  ## Examples
