content: import os
  import shutil
  import socket
  
  
  def has_slurm():
      """determine the system has slurm or not
      Returns: True if has else False.
  
      """
      return shutil.which("sbatch") is not None
  
  def random_port():
      """random a unused port
      Returns: str
  
      """
      with socket.socket() as s:
          s.bind(("", 0))
          return s.getsockname()[1]
  
  def runcmd(cmd):
      """run command
  
      Args:
          cmd (str): The command to run
  
      """
      os.system(cmd)
  