# File lib/mongo/write_concern.rb, line 78
    def get(options)
      return options if options.is_a?(Unacknowledged) || options.is_a?(Acknowledged)
      if options
        validate!(options)
        if unacknowledged?(options)
          Unacknowledged.new(options)
        else
          Acknowledged.new(options)
        end
      end
    end