code: def get_number_of_jobs(alidir):
      try:
          num_jobs = int(
              open("{0}/num_jobs".format(alidir)).readline().strip()
          )
      except (IOError, ValueError) as e:
          logger.error(
              "Exception while reading the "
              "number of alignment jobs: ",
              exc_info=True,
          )
          raise SystemExit(1)
      return num_jobs
  
imports: from __future__ import print_function
  from __future__ import division
  import argparse
  import logging
  import math
  import os
  import subprocess
  import sys
  import threading
label_desc: Use image node_id 11 for calling a global function with example usage: get_number_of_jobs(alidir) and returns: num_jobs