lib/dry/behaviour/black_tie.rb in dry-behaviour-0.5.1 vs lib/dry/behaviour/black_tie.rb in dry-behaviour-0.5.2

@@ -44,9 +44,13 @@
           rescue ArgumentError => e
             raise Dry::Protocol::NotImplemented.new(:method, inspect, "#{method} (#{e.message})")
           end
         end
       end
+
+      singleton_class.send :define_method, :respond_to? do |method|
+        BlackTie.protocols[self].keys.include? method
+      end
     end
 
     def defmethod(name, *params)
       BlackTie.protocols[self][name] = params
     end