add a directory with code

lib/hola.rb

@@ -1,5 +1,8 @@
 class Hola
-  def self.hi
-    puts "Hello world!"
+  def self.hi(language)
+    translator = Translator.new(language)
+    puts translator.hi
   end
 end
+
+require 'hola/translator'

lib/hola/translator.rb

@@ -0,0 +1,14 @@
+class Hola::Translator
+  def initialize(language = :english)
+    @language = language
+  end
+
+  def hi
+    case @language
+    when :spanish
+      "hola mundo"
+    else
+      "hello world"
+    end
+  end
+end