1 files changed, 5 insertions, 0 deletions
diff --git a/mrblib/hash.rb b/mrblib/hash.rb
index c15f770f7..20dd67091 100644
--- a/mrblib/hash.rb
+++ b/mrblib/hash.rb
@@ -183,6 +183,11 @@ class Hash
     }
     h
   end
+
+  def __update(h)
+    h.each{|k,v| self[k] = v}
+    self
+  end
 end
 
 ##