3     def self.attributes(sensors, attribute_names)
 
   7       sensors.sort.each do |sensor, attributes|
 
   9           results << "ignore #{sensor}"
 
  11           results << "label #{sensor} \"#{attributes[:label]}\"" if attributes[:label]
 
  12           results << "compute #{sensor} #{attributes[:compute]}" if attributes[:compute]
 
  14           attribute_names.each do |name|
 
  15             results << "set #{sensor}_#{name} #{attributes[name]}" if attributes[name]
 
  20       results.map { |r| "  #{r}\n" }.join("")