class_docstr: Class Timer is for calculate time.
docstr: Start to calculate time.
docstr_tok: ["Start","to","calculate","time","."]
code: def start(self):
      """
      Start to calculate time.
      """
      self.__start = time.time()
  
file_path: nni/examples/trials/ga_squad/util.py
imports: import time
  import tensorflow
label_desc: Use image node_id 2 for calling the Timer obj's underlying member method code with example usage: obj.start() without return types