# File lib/mocha/instance_method.rb, line 22
22:     def singleton_method?(method)
23:       __metaclass__ = stubbee.__metaclass__
24:       return true if __metaclass__.public_instance_methods(false).include?(method)
25:       return true if __metaclass__.protected_instance_methods(false).include?(method)
26:       return true if __metaclass__.private_instance_methods(false).include?(method)
27:       return false
28:     end