code: function myMiddleware() {
  	return handler => async ctx => {
  		ctx.broker.logger.warn(">> MW1-before (from config)");
  		const res = await handler(ctx);
  		ctx.broker.logger.warn("<< MW1-after (from config)");
  		return res;
  	};
  }
docs: /*
  To test run:
  
  node bin/moleculer-runner.js --config dev/dev.config.js --repl
  
  Call the service and you will see middleware messages in console
  
  mol $ call test.hello