Call one serializer's update() method from another serilaizer's create() method

I have 2 serializers serializer_1 and serializer_2 which are both model serilizer i want to execute update method of serializer_1 from create method of serializer_2 how can i achieve that?

class serializer_1(serializers.ModelSerializer):
      date = serializers.DateTimeField(required=False, allow_null=True)
      ispublic = serializers.BooleanField(allow_null=False)
      details_api_url = serializers.SerializerMethodField()
      dispute_types = OtherSerializer(many=True, required=False, write_only=True)
      nature_of_dispute_list = serializers.SerializerMethodField()
      plaintiff = OtherSerializer(many=True, required=False, write_only=True)
      defendant = OtherSerializer(many=True, required=False, write_only=True)
      claims_rep = OtherSerializer(many=True, required=False, write_only=True)

      class Meta:
         model = Media
         fields = "__all_"

      def update(self, instance, validated_data):
            date = validated_data.pop('close_out_date', None)
            plaintiff_data = validated_data.pop('plaintiff', [])
            defendant_data = validated_data.pop('defendant', [])
            claims_rep_data = validated_data.pop('claims', [])
            is_summary_public_previous = instance.is_summary_public
            
            obj = super().update(instance, validated_data)
            return obj




class serializer_2(serializers.ModelsSerializer):
      class Meta:
      model = Fedia
      fields = "__all__"

      def create(self, validated_data):
          request = self.context['request']
          **serilizer_1_data** = validated_data.pop('serialzer_1_data', None)
          is_final = validated_data.get('is_final')

        
          serializer_1_object = Media.object.create(**serializer_1_data)

          if is_final:
             **Call Serializer Update method**

I have access to date,plaintiff etc mentioned under serializer_1 in create method of serilizer_2 through serilizer_1_data

I think you can achieve this way

class serializer_2(serializers.ModelsSerializer):
      class Meta:
      model = Fedia
      fields = "__all__"

      def create(self, validated_data):
          request = self.context['request']
          **serilizer_1_data** = validated_data.pop('serialzer_1_data', None)
          is_final = validated_data.get('is_final')

        
          serializer_1_object = Media.objects.create(**serializer_1_data)

          if is_final:
             Serializer_1.update(serializer_1_object,validated_date)
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