public static CallCredentials basicAuth(final String username, final String password) {
        return authorizationHeader(encodeBasicAuth(username, password));
    }
Creates new call credentials with the given username and password for basic auth.

<p>
<b>Note:</b> This method uses experimental grpc-java-API features.
</p>

@param username The username to use.
@param password The password to use.
@return The newly created basic auth credentials.
@see SecurityConstants#BASIC_AUTH_PREFIX
@see #encodeBasicAuth(String, String)
@see #authorizationHeader(String)
grpc-client-spring-boot-starter/src/main/java/net/devh/boot/grpc/client/security/CallCredentialsHelper.java