docs: def pluralize_dj(value, arg='s'):
      """
      Adapted from django.template.defaultfilters:
      https://github.com/django/django/blob/master/django/template/defaultfilters.py
  
      Returns a plural suffix if the value is not 1. By default, 's' is used as
      the suffix:
  
      * If value is 0, vote{{ value|pluralize }} displays "0 votes".
      * If value is 1, vote{{ value|pluralize }} displays "1 vote".
      * If value is 2, vote{{ value|pluralize }} displays "2 votes".
  
      If an argument is provided, that string is used instead:
  
      * If value is 0, class{{ value|pluralize:"es" }} displays "0 classes".
      * If value is 1, class{{ value|pluralize:"es" }} displays "1 class".
      * If value is 2, class{{ value|pluralize:"es" }} displays "2 classes".
  
      If the provided argument contains a comma, the text before the comma is
      used for the singular case and the text after the comma is used for the
      plural case:
  
      * If value is 0, cand{{ value|pluralize:"y,ies" }} displays "0 candies".
      * If value is 1, cand{{ value|pluralize:"y,ies" }} displays "1 candy".
      * If value is 2, cand{{ value|pluralize:"y,ies" }} displays "2 candies".
      """
      if ',' not in arg:
          arg = ',' + arg
      bits = arg.split(',')
      if len(bits) > 2:
          return ''
      singular_suffix, plural_suffix = bits[:2]
  
      try:
          if int(value) != 1:
              return plural_suffix
      except ValueError:  # Invalid string that's not a number.
          pass
      except TypeError:  # Value isn't a string or a number; maybe it's a list?
          try:
              if len(value) != 1:
                  return plural_suffix
          except TypeError:  # len() of unsized object.
              pass
      return singular_suffix