# File lib/mocha/instance_method.rb, line 15
15:     def method_exists?(method)
16:       return true if stubbee.public_methods(false).include?(method)
17:       return true if stubbee.protected_methods(false).include?(method)
18:       return true if stubbee.private_methods(false).include?(method)
19:       return false
20:     end