code: def append_ISO19115_keywords(keywords):
      
      # Map setting's key and metadata key
      ISO19115_mapping = {
          'ISO19115_ORGANIZATION': 'organisation',
          'ISO19115_URL': 'url',
          'ISO19115_EMAIL': 'email',
          'ISO19115_LICENSE': 'license'
      }
      ISO19115_keywords = {}
      # Getting value from setting.
      for key, value in list(ISO19115_mapping.items()):
          ISO19115_keywords[value] = setting(key, expected_type=str)
      keywords.update(ISO19115_keywords)
docs: Append ISO19115 from setting to keywords.
  
      :param keywords: The keywords destination.
      :type keywords: dict