Sorta an open portal command.

class CmdPortal(Command):
    """
    Opens or closes a portal.

    Usage:
        portal <mark>
        portal close

    Open a portal to the destination mark for up to 5 minutes.
    Use the close argument to instead close the portal.
    """
    key = "portal"
    #create_exit(exit_name, location, destination, exit_aliases=exit_aliases, typeclass=typeclass)
    def func(self):
        destination = self.caller.db.mark[self.args]
        destination = search_object_attribute(destination)
        create_exit("portal", self.caller.location, destination, exit_aliases=None, typeclass=None)