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							from rest_framework import serializers
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							from apps.edu.models import Certificate
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							class CertificateSerializer(serializers.ModelSerializer):
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							    class Meta:
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							        model = Certificate
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							        fields = '__all__'
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							        read_only_fields = ['create_time', 'update_time', 'create_by', 'update_by', 'is_deleted'] |