Wrong instantiation of PackagingService() in example.py

[sbocconi]

Class PackagingService is defined as class PackagingService(Generic[P, S]) but called with arguments (iso type assignments)

packer = PackagingService(
        PrefixResolver({"did:peer:2": Peer2(), "did:peer:4": Peer4()}), crypto, secrets
    )

Giving:

File "/Users/SB/Projects/Software/Dyne/CIRPASS/didcomm-messaging-python/example.py", line 19, in main
    packer = PackagingService(
             ^^^^^^^^^^^^^^^^^
TypeError: PackagingService() takes no arguments