text: """Remote client command for retrieving ports from containers."""
  import sys
  
  import podman
  from pypodman.lib import AbstractActionBase
  
  
  class Port(AbstractActionBase):
      """Class for retrieving ports from container."""
  
      @classmethod
      def subparser(cls, parent):
          """Add Port command to parent parser."""
          parser = parent.add_parser(
              'port', help='retrieve ports from containers')
          parser.add_argument(
              '--all',
              '-a',
              action='store_true',
              default=False,
              help='List all known port mappings for running containers')
          parser.add_argument(
              'containers',
              nargs='*',
              default=None,
              help='containers to list ports',
          )
          parser.set_defaults(class_=cls, method='port')
  
      def __init__(self, args):
          """Construct Port class."""
          if not args.all and not args.containers:
              raise ValueError('You must supply at least one'
                               ' container id or name, or --all.')
          super().__init__(args)
  
      def port(self):
          """Retrieve ports from containers."""
          try:
              ctnrs = []
              if self._args.all:
                  ctnrs = self.client.containers.list()
              else:
                  for ident in self._args.containers:
                      try:
                          ctnrs.append(self.client.containers.get(ident))
                      except podman.ContainerNotFound as e:
                          sys.stdout.flush()
                          print(
                              'Container "{}" not found'.format(e.name),
                              file=sys.stderr,
                              flush=True)
  
              for ctnr in ctnrs:
                  print("{}\n{}".format(ctnr.id, ctnr.ports))
  
          except podman.ErrorOccurred as e:
              sys.stdout.flush()
              print(
                  '{}'.format(e.reason).capitalize(),
                  file=sys.stderr,
                  flush=True)
              return 1
  