docs: public HadoopJarStepConfig newInstallPigStep(String... pigVersions) {
          if (pigVersions != null && pigVersions.length > 0) {
              return newHivePigStep("pig", "--install-pig", "--pig-versions",
                      StringUtils.join(",", pigVersions));
          }
          return newHivePigStep("pig", "--install-pig", "--pig-versions", "latest");
      }