text: from rest_framework.views import APIView
  from rest_framework.response import Response
  from rest_framework import status
  from rest_framework import viewsets
  from rest_framework.authentication import TokenAuthentication
  from rest_framework import filters
  
  from profiles_api import serializers
  from profiles_api import models
  from profiles_api import permissions
  
  class HelloApiView(APIView):
  
      serializer_class=serializers.HelloSerializer
  
      def get(self,request,format=None):
          an_apiview=[
              'Uses HTTP method as functions',
              'Is similar to a traditional Django View',
              'Is mapped manually to URLS',
          ]
  
          return Response({'message':'Hello','ans_apiview':an_apiview})
  
      def post(self,request):
          serializer=self.serializer_class(data=request.data)
  
          if serializer.is_valid():
              name=serializer.validated_data.get('name')
              message=f'Hello {name}'
              return Response({'message':message})
          else:
              return Response(
              serializer.errors,
              status=status.HTTP_400_BAD_REQUEST
              )
  
      def put(self,request,pk=None):
          return Response({'method':'PUT'})
  
      def patch(self,request,pk=None):
          return Response({'method':'PATCH'})
  
      def delete(self,request,pk=None):
          return Response({'method':'DELETE'})
  
  
  class HelloViewSet(viewsets.ViewSet):
  
      serializer_class=serializers.HelloSerializer
  
      def list(self,request):
          a_viewset=[
              'Uses actions',
              'Maps to Urls',
          ]
  
          return Response({'message':'Hello','a_viewset':a_viewset})
  
      def create(self,request):
          serializer=self.serializer_class(data=request.data)
  
          if serializer.is_valid():
              name=serializer.validated_data.get('name')
              message=f'Hello {name}'
              return Response({'message':message})
  
          else:
              return Response(
                  serializer.errors,
                  status=status.HTTP_400_BAD_REQUEST
              )
  
      def retrieve(self,request,pk=None):
  
          return Response({'http_method':'GET'})
  
      def update(Self,request,pk=None):
  
          return Response({'http_method':'PUT'})
  
      def partial_update(self,request,pk=None):
  
          return Response({'http_method':'PATCH'})
  
      def destroy(self,request,pk=None):
  
          return Response({'http_method':'DELETE'})
  
  
  class UserProfileViewSet(viewsets.ModelViewSet):
      serializer_class=serializers.UserProfileSerializer
      queryset=models.UserProfile.objects.all()
      authentication_classes=(TokenAuthentication,)
      permission_classes=(permissions.UpdateOwnProfile,)
      filter_backends=(filters.SearchFilter,)
      search_fields=('name','email',)
  