Response $ref type != struct

[llonchj]

/*
GET /v1/test
tests

Response 200: $ref: bool
*/

throws could not parse response 200 params: GetReference: could not find type "bool" in package ...

then tried:

type TestResponse bool

/*
GET /v1/test
tests

Response 200: $ref: TestResponse
*/

and throws: could not parse response 200 params: GetReference: TestResponse is not a struct or interface but a *ast.Ident