Multiple API documentation in one Swagger file

问题

Is it possible to have multiple (somehow separated) REST API documentations but only in one swagger yaml file?

Or can the swagger yaml contain only one API documentation?

Because I have 2 REST API developed by me, and I want to have a common swagger ui instead of two, which I could manage with a gateway like Tyk.

来源：https://stackoverflow.com/questions/51080805/multiple-api-documentation-in-one-swagger-file