def log1(obj) end
def log2(obj) end
def log3(obj) end
obj = Bar.new("str")
log1(obj)
log2(obj.test_superclass)
log3(obj.test_module)
__END__
# Classes
class Object
private
def log1: (Bar[String] obj) -> nil
def log2: (Array[String] obj) -> nil
def log3: (Integer obj) -> nil
end