content: import re
  
  __all__ = (
      'enum_key',
      'remove_linebreaks',
      'title',
      'trailing_slash',
  )
  
  
  def enum_key(value):
      """
      Convert the given value to a string suitable for use as an Enum key.
      """
      value = str(value).upper()
      return re.sub(r'[^_A-Z0-9]', '_', value)
  
  
  def remove_linebreaks(value):
      """
      Remove all line breaks from a string and return the result. Useful for log sanitization purposes.
      """
      return value.replace('\n', '').replace('\r', '')
  
  
  def title(value):
      """
      Improved implementation of str.title(); retains all existing uppercase letters.
      """
      return ' '.join([w[0].upper() + w[1:] for w in str(value).split()])
  
  
  def trailing_slash(value):
      """
      Remove a leading slash (if any) and include a trailing slash, except for empty strings.
      """
      return f'{value.strip("/")}/' if value else ''
  