code: public Bigquery getBigQuery(Configuration config)
        throws GeneralSecurityException, IOException {
      logger.atInfo().log("Creating BigQuery from default credential.");
      Credential credential = createBigQueryCredential(config);
      // Use the credential to create an authorized BigQuery client
      return getBigQueryFromCredential(credential, BQC_ID);
    }
docs: Constructs a BigQuery from the credential constructed from the environment.
  
  @throws IOException on IO Error.
  @throws GeneralSecurityException on General Security Error.