lib/key_mapable/mapper.rb in key_mapable-0.4.0 vs lib/key_mapable/mapper.rb in key_mapable-0.5.0

@@ -17,10 +17,10 @@
     child_mapper = self.class.new(subject)
     child_mapper.instance_eval(&block)
     @structure[name] = child_mapper.resolve
   end
 
-  def key_map(original_key, new_key, transform = ->(val) { val }, &block)
+  def key_map(original_key, new_key, transform: ->(val) { val }, &block)
     original_subject = subject.public_send(original_key)
     transformed_subject = transform.call(original_subject)
     if block_given?
       child_mapper = self.class.new(transformed_subject)
       child_mapper.instance_eval &block