code: def get_jobs_from_argument(self, raw_job_string):
          
          jobs = []
          if raw_job_string.startswith(":"):
              job_keys = raw_job_string.strip(" :")
              jobs.extend([job for job in self.jobs(job_keys)])
          # we assume a job code
          else:
              assert "/" in raw_job_string, "Job Code {0} is improperly formatted!".format(raw_job_string)
              host, job_name = raw_job_string.rsplit("/", 1)
              host_url = self._config_dict.get(host, {}).get('url', host)
              host = self.get_host(host_url)
              if host.has_job(job_name):
                  jobs.append(JenksJob(None, host, job_name,
                                       lambda: self._get_job_api_instance(host_url, job_name)))
              else:
                  raise JenksDataException(
                      "Could not find Job {0}/{1}!".format(host, job_name))
          return jobs
docs: return a list of jobs corresponding to the raw_job_string