class_docstr: Class used for logging time metrics.
  
  This is not thread safe
class_docstr_tok: ["Class","used","for","logging","time","metrics",".","This","is","not","thread","safe"]
code: def total_elapsed_time(self):
      return self._total_time
  
file_path: evadb/evadb/utils/stats.py
imports: import time
  from dataclasses import dataclass
  from evadb.utils.logging_manager import logger
label_desc: Use image node_id 4 for calling the Timer obj's underlying member method code with example usage: obj.total_elapsed_time() and returns: self