code: def get_process_parser(self, process_id_or_name):
          
          if process_id_or_name in self.process_parsers_by_name:
              return self.process_parsers_by_name[process_id_or_name]
          else:
              return self.process_parsers[process_id_or_name]
docs: Returns the ProcessParser for the given process ID or name. It matches
          by name first.