How to validate request path parameters for API Gateway in OpenAPI definition

Currently, there is a way to validate headers, query parameters, and the request body using a validator. But there isn't a way to do this validation for request path parameters.

The same question has been asked in the thread https://forums.aws.amazon.com/thread.jspa?threadID=267060 from 2017.

However, there hasn't been an answer in that thread. So my question would be: is there a way to validate request path parameters in API Gateway similar to how we validate headers, query parameters, and the request body?

Thank you