class_docstr: Measures elapsed time.
  
  .. code-block:: python
  
      from mlflow.utils.time import Timer
  
      with Timer() as t:
          ...
  
      print(f"Elapsed time: {t:.2f} seconds")
code: def __format__(self, format_spec: str) -> str:
      return self.elapsed.__format__(format_spec)
  
file_path: mlflow/mlflow/utils/time.py
imports: import datetime
  import time
  from pytz import reference
label_desc: Use image node_id 4 for calling the Timer obj's underlying member method code with example usage: obj.__format__(format_spec) and returns: self