public Task <MessageHandlerResults> ProcessMessageAsync(Message msg, string pipelineName, int index)
        {
            if (_properties.Length == 0)
            {
                msg.Properties[_generator.DefaultProperty] = _generator.GeneratePropertyValue();
            }
            else
            {
                foreach (var property in _properties)
                {
                    msg.Properties[property] = _generator.GeneratePropertyValue();
                }
            }

            return(Task.FromResult(MessageHandlerResults.Success));
        }