docs: public static LifecycleChaincodePackage fromFile(File policyFile) throws IOException, InvalidArgumentException {
          if (null == policyFile) {
              throw new InvalidArgumentException("The parameter policyFile may not be null.");
          }
          try (InputStream is = new FileInputStream(policyFile)) {
              byte[] packageBytes = IOUtils.toByteArray(is);
              return fromBytes(packageBytes);
          }
      }