code: public JenkinsServer enableJob(String jobName, boolean crumbFlag) throws IOException {
          client.post("/job/" + EncodingUtils.encode(jobName) + "/enable", crumbFlag);
          return this;
      }
docs: Enable a job from Jenkins.
  
  @param jobName The name of the job to be deleted.
  @param crumbFlag <code>true</code> to add <b>crumbIssuer</b>
  <code>false</code> otherwise.
  @throws IOException In case of an failure.