# File lib/plain_formatter.rb, line 75
        def format
          sprintf("%-10s | %15s GB | %-10s | %-10s | %-15s",
            @obj.id[0,10],
            @obj.capacity ? @obj.capacity.to_s[0,15] : 'unknown',
            @obj.device ? @obj.device[0,10] : 'unknown',
            @obj.respond_to?('state') ? @obj.state[0,10] : 'unknown',
            @obj.instance ? @obj.instance.name[0,15] : 'unknown'
          )
        end