VIP - Add first function to queue_assistant module

Author: shahryarjb

lib/modules/queue_assistant.ex

@@ -695,6 +695,14 @@ defmodule QueueAssistant do
     :queue.head(queue)
   end
 
+  @doc """
+  Please see `head/1`.
+  """
+  @spec first(queue_type()) :: any()
+  def first(queue) do
+    :queue.head(queue)
+  end
+
   @doc """
   Returns a queue `q2` that is the result of removing the tail item from `q1`.