[FR] Is there an existing implementation which can replace the content of the message being sent?

[realdeveloperongithub]

Is your feature request related to a problem? Please describe. 您的建议具体与什么有关？

I'd like to replace some keywords of the message being sent from the slave, is there an existing implementation of it?

Describe the solution you'd like 希望的解决方案

I tried to look into the code but i found no replacement of the message being sent.

Describe alternatives you've considered 考虑过的替代方案

Additional context 补充内容

[blueset]

You can write a middleware to achieve this.

• Learn more about middlewares
• Check out existing middlewares