holli-holzer

# https://docs.raku.org/language/typesystem#subset
# A subset gives us a thing we can smartmatch ( ~~ ) against
# at which point the where condition gets executed on the thing we 
# are smartmatching.
#
# For example:
# subset StartsWithA of Str where *.starts-with("A");
# say "Brussels Sprouts" ~~ StartsWithA; # False
# say "Antonio Banderas" ~~ StartsWithA; # True
#