   end
 
   @doc """
-  Operator alias for `fanout/2`
+  Operator alias for `fanout/2`.
 
   ## Examples
 

  def swap({x, y}), do: {y, x}

  @doc """
  Target the first element of a tuple

  ## Examples


  def unsplit({x, y}, combine), do: combine.(x, y)

  @doc """
  Switch the associativity of a nested tuple. Helpful since many arrows act
  on a subset of a tuple, and you may want to move portions in and out of that stream.

  ## Examples

