code: def _GetTypeIndicators(
        cls, signature_scanner, specification_store, remainder_list, path_spec,
        resolver_context=None):
      
      type_indicator_list = []
  
      file_object = resolver.Resolver.OpenFileObject(
          path_spec, resolver_context=resolver_context)
      scan_state = pysigscan.scan_state()
  
      try:
        signature_scanner.scan_file_object(scan_state, file_object)
  
        for scan_result in iter(scan_state.scan_results):
          format_specification = specification_store.GetSpecificationBySignature(
              scan_result.identifier)
  
          if format_specification.identifier not in type_indicator_list:
            type_indicator_list.append(format_specification.identifier)
  
        for analyzer_helper in remainder_list:
          result = analyzer_helper.AnalyzeFileObject(file_object)
  
          if result is not None:
            type_indicator_list.append(result)
  
      finally:
        file_object.close()
  
      return type_indicator_list
docs: Determines if a file contains a supported format types.
  
      Args:
        signature_scanner (pysigscan.scanner): signature scanner.
        specification_store (FormatSpecificationStore): specification store.
        remainder_list (list[AnalyzerHelper]): remaining analyzer helpers that
            do not have a format specification.
        path_spec (PathSpec): path specification.
        resolver_context (Optional[Context]): resolver context, where None
            represents the built-in context which is not multi process safe.
  
      Returns:
        list[str]: supported format type indicators.