BytesMessage.data is a bytearray but type-hinted as bytes #185

from wsproto import WSConnection, ConnectionType
from wsproto.events import Request, BytesMessage, AcceptConnection

client = WSConnection(ConnectionType.CLIENT)
server = WSConnection(ConnectionType.SERVER)

msg = client.send(Request(host='echo.websocket.org', target='/'))
server.receive_data(msg)

msg = server.send(AcceptConnection())
client.receive_data(msg)

msg = server.send(BytesMessage(b"Hello"))
client.receive_data(msg)

for event in client.events():
    if isinstance(event, BytesMessage):
        print(type(event.data))  # bytearray