Library that's maps and unmaps upnp ports.

class name is port_manager.

Class arguments:

Methods:

• discover check current upnp status. Returns ValueError Exception if unavailable.
• unmap_allports unmap all ports.
• mapport map the port. Arguments ['port', 'proto']. Port will be random if port=None here. Default proto is TCP. returns boolean and str port
• unmapport unmap the port Arguments ['port', 'proto']. Default proto is TCP.