code: public OvhRegistryCredentials serviceName_registry_credentials_credentialsId_GET(String serviceName, String credentialsId) throws IOException {
  		String qPath = "/caas/containers/{serviceName}/registry/credentials/{credentialsId}";
  		StringBuilder sb = path(qPath, serviceName, credentialsId);
  		String resp = exec(qPath, "GET", sb.toString(), null);
  		return convertTo(resp, OvhRegistryCredentials.class);
  	}
docs: Inspect the image registry credentials associated to the stack
  
  REST: GET /caas/containers/{serviceName}/registry/credentials/{credentialsId}
  @param credentialsId [required] credentials id
  @param serviceName [required] service name
  
  API beta