docs: def get_settings_from_environment(environ):
      '''Deduce settings from environment variables'''
      settings = {}
      for name, value in environ.items():
          if not name.startswith('DJANGO_'):
              continue
          name = name.replace('DJANGO_', '', 1)
          if _ignore_setting(name):
              continue
          try:
              settings[name] = ast.literal_eval(value)
          except (SyntaxError, ValueError) as err:
              LOGGER.warn("Unable to parse setting %s=%s (%s)", name, value, err)
      return settings