django menetapkan pengguna yang diautentikasi ke pengguna asing

from rest_framework import generics, serializers
from rest_framework.permissions import IsAuthenticated

class TicketFormView(generics.CreateAPIView):
    serializer_class = TicketSerializer
    queryset = Ticket.objects.all()
    permission_classes = ( IsAuthenticated, )

    def perform_create(self, serializer):
        serializer.save(created_by=self.request.user)
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