new_contents: 
  import re
  import json
  
  
  def nl2br(value):
      if value:
          _newline_re = re.compile(r'(?:\r\n|\r|\n)')
          return _newline_re.sub('<br>', value)
  
  
  def tab2spaces(value):
      if value:
          text = re.sub('\t', '&nbsp;' * 4, value)
          return text
  
  
  def unslug(value):
      text = re.sub('_', ' ', value)
      return text
  
  
  def slug(value):
      text = re.sub('\s+', '_', value)
      return text
  
  
  def check_regex(value):
      if re.match('variable', value):
          return True
      else:
          return False
  
  
  def pretty_print_json(string):
      return json.dumps(
          string,
          sort_keys=False,
          indent=4,
          separators=(',', ':')
      )
  
  
  def remove_slash(string):
      if string:
          return re.sub('\/', '', string)
  
subject: Move template filters out of init file