Attempt at creating an exit.

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"



    def func(self):
        from evennia.utils import dbref_to_obj
        from evennia import DefaultExit
        from evennia.utils import search
        from evennia.commands.default.building import CmdOpen
        destination = self.caller.db.mark[self.args]
        destination = search(destination)
        destination = dbref_to_obj(destination, 'typeclasses.rooms.Room', raise_errors=True)

        #create(cls, key, account, source, dest, **kwargs)
        DefaultExit.create("portal", self.caller.account, self.caller.location, destination)