module AWS::SimpleDB::DeleteAttributes

def delete_named_attributes *attribute_names
  expect_opts = attribute_names.pop if attribute_names.last.kind_of?(Hash)
  attributes = attribute_names.flatten.collect{|n| { :name => n.to_s } }
  opts = {
    :domain_name => item.domain.name,
    :item_name => item.name,
    :attributes => attributes,
    :expected => expect_condition_opts(expect_opts || {})
  }
  opts.delete(:expected) if opts[:expected].empty?
  client.delete_attributes(opts) unless attributes.empty?
end