Getting `Caught error: runtime error: invalid memory address or nil pointer dereference` trying to import basic OpenAPI spec about restish

[ljwall]

Digging some more, if I update myip.yaml to include a responses block as follows:

openapi: 3.1.0
info:
  title: My IP
  version: 0.0.1
paths:
  /:
    get:
      summary: Get your own IP
      operationId: getMyIP
      responses:
        "200":
          description: text body containing your IP address

then it all works.

I don't think (based on https://swagger.io/specification/#operation-object) that the responses block should be required?