old_contents: from radar_api.serializers.meta import MetaSerializerMixin
  from radar.serializers.models import ModelSerializer
  from radar.models.ins import InsClinicalPicture, InsRelapse, KIDNEY_TYPE, REMISSION_TYPE
  from radar.serializers.codes import CodedStringSerializer
  from radar_api.serializers.patient_mixins import PatientSerializerMixin
  
  
  class InsClinicalPictureSerializer(PatientSerializerMixin, MetaSerializerMixin, ModelSerializer):
      class Meta(object):
          model_class = InsClinicalPicture
  
  
  class InsRelapseSerializer(PatientSerializerMixin, MetaSerializerMixin, ModelSerializer):
      kidney_type = CodedStringSerializer(KIDNEY_TYPE)
      remission_type = CodedStringSerializer(REMISSION_TYPE)
  
      class Meta(object):
          model_class = InsRelapse
  
new_contents: from radar_api.serializers.meta import MetaSerializerMixin
  from radar.serializers.models import ModelSerializer
  from radar.models.ins import InsClinicalPicture, InsRelapse, KIDNEY_TYPES, REMISSION_TYPES
  from radar.serializers.codes import CodedStringSerializer
  from radar_api.serializers.patient_mixins import PatientSerializerMixin
  
  
  class InsClinicalPictureSerializer(PatientSerializerMixin, MetaSerializerMixin, ModelSerializer):
      class Meta(object):
          model_class = InsClinicalPicture
  
  
  class InsRelapseSerializer(PatientSerializerMixin, MetaSerializerMixin, ModelSerializer):
      kidney_type = CodedStringSerializer(KIDNEY_TYPES)
      remission_type = CodedStringSerializer(REMISSION_TYPES)
  
      class Meta(object):
          model_class = InsRelapse
  
subject: Fix typo