enum Colour <white orange black>; sub render-congrats(Str :$name!, Colour :$belt!) { "Hey $name, congratulations on your { tc $belt } Ninja Belt." } say render-congrats :name<Tim>, :belt(orange); sub render-balance(Str :$name!, Rat() :$amount!) { #Rat() mean: guve me something that can be converted to a Rat (rational) and convert it "$name, your balance is \$ $amount" } say render-balance :name<Julian>, :amount(10000); # say render-balance :name<Julian>; # ERROR:Required named parameter 'amount' not passed my &render-user-balance = &render-balance.assuming: :name<Julian>; say render-user-balance :amount(100)