class Hashie::Clash

def merge_store(key, *args) #:nodoc:
  case args.length
  when 1
    val = args.first
    val = self.class.new(self[key]).merge(val) if self[key].is_a?(::Hash) && val.is_a?(::Hash)
  else
    val = args
  end
  self[key.to_sym] = val
  self
end