Why aren't hydra and openapi3 generating the same components

Description
here I am testing the client generator and I am noticing that the hydra generates only this
`Interface for the "Book" resource type has been generated!

Interface for the "Review" resource type has been generated!

Interface for the "TopBook" resource type has been generated!`

and the openapi3 generate this:
`Interface for the "Book" resource type has been generated!;

Interface for the "Parchment" resource type has been generated!;

Interface for the "Review" resource type has been generated!;

Interface for the "TopBook" resource type has been generated!;
`

and when i looked at the endpoints on the api https://demo.api-platform.com/
i saw that there are 5
/books*
/parchments* // deprecated
/reviews*
/stats*
/top_books*

How to reproduce
I lunched the test-gen and test-gen-openapi3 commands