docstr: Like Matlab tic/toc for wall time.
docstr_tok: ["Like","Matlab","tic\/toc","for","wall","time","."]
code: def toc(self):
      """Like Matlab tic/toc for wall time."""
      return self.wall()
  
imports: import logging
  import time
  from datetime import datetime, timedelta
label_desc: Use image node_id 8 for calling the Timer obj's underlying member method code with example usage: obj.toc() and returns: self