I am trying to supply data to serializer related field but it keeps throwing a validation error which says the field is required even when I supply a value for it through postman. I honestly don't know what I am doing wrong.
Here's are my serializer;
class ProjectFileSerializer(serializers.ModelSerializers):
    class Meta:
        model = ProjectFile
        fields = ['project', 'file']
class ProjectSerializer(serializers.ModelSerializer):
    project_file = ProjectFileSerializer(write_only=True, many=True)
    class Meta:
        model = Project
        fields = ['title', 'category', 'budget', 'project_file']