text: 
  from rest_framework import serializers
  from .models import TrackData
  
  __all__ = ['TrackDataSerializer']
  
  
  class TrackDataSerializer(serializers.ModelSerializer):
      """
      serializer to map model instance into json formats
      """
  
      class Meta:
          """
          meta class to map serializer fields into model fields
          """
          model = TrackData
          fields = ('description', 'resume', 'id', 'created', 'modified')
          read_only_fields = ('created', 'modified', 'id')
  