@Override
        public String toString() {
            return "RequirePrivacyCallCredentials [callCredentials=" + this.callCredentials + "]";
        }
A call credentials implementation with slightly increased security requirements. It ensures that the credentials
aren't send via an insecure connection. However, it does not prevent requests via insecure connections. This
wrapper does not have any other influence on the security of the underlying {@link CallCredentials}
implementation.
grpc-client-spring-boot-starter/src/main/java/net/devh/boot/grpc/client/security/CallCredentialsHelper.java