OptionalclientOptionaldpopOptionaljwk?: {The JWK will be returned if a DPoP proof was provided in the header.
base64url encoding of the JWK SHA-256 Thumbprint (according to [RFC7638]) of the DPoP public key (in JWK format).
This will always be returned if dpop is used for the PAR endpoint
The verified client attestation if any were provided.