text: import os
  import time
  
  from fileio import File
  
  
  _tfdsio_dir = os.path.abspath(os.path.dirname(__file__))
  _tfdsio_imports = os.path.join(_tfdsio_dir, 'imported')
  
  def set_adc(path):
      os.environ['GOOGLE_APPLICATION_CREDENTIALS'] = path
  
  def timer(start_time=None):
      if not start_time:
          return time.time()
      return time.time() - start_time
  