docs: def _get_port_range(range_str):
          """ Given a string with a port or port range: '80', '80-120'
              Returns tuple with range start and end ports: (80, 80), (80, 120)
          """
          if range_str == '*':
              return PortsRangeHelper.PortsRange(start=0, end=65535)
  
          s = range_str.split('-')
          if len(s) == 2:
              return PortsRangeHelper.PortsRange(start=int(s[0]), end=int(s[1]))
  
          return PortsRangeHelper.PortsRange(start=int(s[0]), end=int(s[0]))