Ruby/Reflection/singleton methods

p Object.singleton_methods                       # => []
p Fixnum.singleton_methods                       # => ["induced_from"]
class MyClass
  def MyClass.my_singleton_method
 end
  def my_instance_method
  end
end
MyClass.singleton_methods                      # => ["my_singleton_method"]
"".methods == String.instance_methods          # => true