Heucristic::Index::Arity

new(required : Int32, optional : Int32, splat : Bool)

of(args : Array(Crystal::Arg), splat_index : Int32 | Nil) : Arity

of(node : Crystal::Def | Crystal::Macro) : Arity

accepts?(count : Int32) : Bool

copy_with(required _required = @required, optional _optional = @optional, splat _splat = @splat)