code: def get_method_names(obj):
          
          method_names = []
          
          for method_name in dir(obj):
  
              method = getattr(obj, method_name)
  
              if MethodReflector._is_method(method, method_name):
                  method_names.append(method_name)
  
          return method_names
docs: Gets names of all methods implemented in specified object.
  
          :param obj: an object to introspect.
  
          :return: a list with method names.