gistfile1.txt

proto sub infix:<foo>(|) is pure { * }
multi sub infix:<foo>(**@args is raw) { @args.minmax }

proto sub infix:<bar>(|) is pure { * }
multi sub infix:<bar>(+args) { args.minmax }

proto sub infix:<baz>(|) is pure { * }
multi sub infix:<baz>(+args) { 42; args.minmax }

my @a = 1,2,3,4;
my @b = 5,6,7,8;

say @a foo @b;
say @a bar @b;
say @a baz @b;