old_contents: import json
  import logging
  import re
  
  from django.http import JsonResponse
  from django.core.serializers.json import DjangoJSONEncoder
  from django.template import loader
  from django.http import HttpResponse
  
  logger = logging.getLogger(__name__)
  
  
  class DjangoJSONEncoderWithSets(DjangoJSONEncoder):
  
      def default(self, o):
          if isinstance(o, set):
              return list(o)
  
          return super(DjangoJSONEncoderWithSets, self).default(o)
  
  
  def create_json_response(obj, **kwargs):
      """Encodes the give object into json and create a django JsonResponse object with it.
  
      Args:
          obj (object): json response object
          **kwargs: any addition args to pass to the JsonResponse constructor
      Returns:
          JsonResponse
      """
  
      dumps_params = {
          'sort_keys': True,
          'indent': 4,
          'default': DjangoJSONEncoderWithSets().default
      }
  
      return JsonResponse(
          obj, json_dumps_params=dumps_params, encoder=DjangoJSONEncoderWithSets, **kwargs)
  
  
  CAMEL_CASE_MAP = {}
  
  
  def _to_camel_case(snake_case_str):
      """Convert snake_case string to CamelCase"""
      if not CAMEL_CASE_MAP.get(snake_case_str):
          converted = snake_case_str.replace('_', ' ').title().replace(' ', '')
          CAMEL_CASE_MAP[snake_case_str] = converted[0].lower() + converted[1:]
      return CAMEL_CASE_MAP[snake_case_str]
  
  
  def _to_title_case(snake_case_str):
      """Convert snake_case string to Title Case"""
  
      components = snake_case_str.split('_')
      return " ".join(x.title() for x in components)
  
  
  def _to_snake_case(camel_case_str):
      """Convert CamelCase string to snake_case (from https://gist.github.com/jaytaylor/3660565)"""
  
      return re.sub('([A-Z])', '_\\1', camel_case_str).lower().lstrip('_')
  
new_contents: import logging
  import re
  
  from django.http import JsonResponse
  from django.core.serializers.json import DjangoJSONEncoder
  
  logger = logging.getLogger(__name__)
  
  
  class DjangoJSONEncoderWithSets(DjangoJSONEncoder):
  
      def default(self, o):
          if isinstance(o, set):
              return list(o)
  
          return super(DjangoJSONEncoderWithSets, self).default(o)
  
  
  def create_json_response(obj, **kwargs):
      """Encodes the give object into json and create a django JsonResponse object with it.
  
      Args:
          obj (object): json response object
          **kwargs: any addition args to pass to the JsonResponse constructor
      Returns:
          JsonResponse
      """
  
      dumps_params = {
          'sort_keys': True,
          'indent': 4,
          'default': DjangoJSONEncoderWithSets().default
      }
  
      return JsonResponse(
          obj, json_dumps_params=dumps_params, encoder=DjangoJSONEncoderWithSets, **kwargs)
  
  
  CAMEL_CASE_MAP = {}
  
  
  def _to_camel_case(snake_case_str):
      """Convert snake_case string to CamelCase"""
      if not CAMEL_CASE_MAP.get(snake_case_str):
          converted = snake_case_str.replace('_', ' ').title().replace(' ', '')
          CAMEL_CASE_MAP[snake_case_str] = converted[0].lower() + converted[1:]
      return CAMEL_CASE_MAP[snake_case_str]
  
  
  def _to_title_case(snake_case_str):
      """Convert snake_case string to Title Case"""
  
      components = snake_case_str.split('_')
      return " ".join(x.title() for x in components)
  
  
  def _to_snake_case(camel_case_str):
      """Convert CamelCase string to snake_case (from https://gist.github.com/jaytaylor/3660565)"""
  
      return re.sub('([A-Z])', '_\\1', camel_case_str).lower().lstrip('_')
  
subject: remove unsed imports