# File lib/fog/aws/requests/storage/head_bucket.rb, line 16
        def head_bucket(bucket_name)
          unless bucket_name
            raise ArgumentError.new('bucket_name is required')
          end
          request({
            :expects    => 200,
            :bucket_name => bucket_name,
            :idempotent => true,
            :method     => 'HEAD',
          })
        end