code: def __enter__(self):
      self.start = time.time()
      self.timer.base_category = (
          self.original_base_category + self.category + "/"
      )
      self.timer.subcategory_level += 1
  
      if self.timer.print_log:
          print(
              f"{'  ' * self.timer.subcategory_level}{self.category}:"
          )
  
file_path: stable-diffusion-webui/modules/timer.py
imports: import time
  import argparse
label_desc: Use image node_id 2 for calling the TimerSubcategory obj's underlying member method code with example usage: obj.__enter__() without return types