@Override
    public boolean removeAllRegistrations(final String username) {
        update(username, new HashSet<>());
        return true;
    }
This is {@link BaseWebAuthnCredentialRepository}.

@author Misagh Moayyed
@since 6.3.0
support/cas-server-support-webauthn-core/src/main/java/org/apereo/cas/webauthn/storage/BaseWebAuthnCredentialRepository.java