package Ġcom . a oc . fuel . factory Ċ Ċ import Ġcom . a oc . fuel . factory . components . Reaction Component Ċ Ċ data Ġclass ĠRe action ( val Ġconsume s : ĠSet < Reaction Component >, Ġval Ġproduces : ĠRe action Component ) Ġ{ ĊĠĠĠ Ġoverride Ġfun ĠtoString () Ġ= Ġ"${ consume s . join ToString ( separator Ġ= Ġ", Ġ" )} Ġ=> Ġ$ pro duces " Ċ }