code: def convert_options(settings, defaults=None):
      
      if defaults is None:
          defaults = {}
  
      if isinstance(settings, dict):
          def getopt(key, default=None):
              return settings.get(
                  'SENTRY_%s' % key.upper(),
                  defaults.get(key, default)
              )
  
          options = copy.copy(
              settings.get('SENTRY_CONFIG')
              or settings.get('RAVEN_CONFIG')
              or {}
          )
      else:
          def getopt(key, default=None):
              return getattr(settings, 'SENTRY_%s' % key.upper(), defaults.get(key, default))
  
          options = copy.copy(
              getattr(settings, 'SENTRY_CONFIG', None)
              or getattr(settings, 'RAVEN_CONFIG', None)
              or {}
          )
  
      options.setdefault('include_paths', getopt('include_paths', []))
      options.setdefault('exclude_paths', getopt('exclude_paths', []))
      options.setdefault('timeout', getopt('timeout'))
      options.setdefault('name', getopt('name'))
      options.setdefault('auto_log_stacks', getopt('auto_log_stacks'))
      options.setdefault('string_max_length', getopt('string_max_length'))
      options.setdefault('list_max_length', getopt('list_max_length'))
      options.setdefault('site', getopt('site'))
      options.setdefault('processors', getopt('processors'))
      options.setdefault('sanitize_keys', getopt('sanitize_keys'))
      options.setdefault('dsn', getopt('dsn', os.environ.get('SENTRY_DSN')))
      options.setdefault('context', getopt('context'))
      options.setdefault('tags', getopt('tags'))
      options.setdefault('release', getopt('release'))
      options.setdefault('repos', getopt('repos'))
      options.setdefault('environment', getopt('environment'))
      options.setdefault('ignore_exceptions', getopt('ignore_exceptions'))
      options.setdefault('sample_rate', getopt('sample_rate'))
  
      transport = getopt('transport') or options.get('transport')
      if isinstance(transport, string_types):
          transport = import_string(transport)
      options['transport'] = transport
  
      return options
docs: Convert a settings object (or dictionary) to parameters which may be passed
      to a new ``Client()`` instance.