docs: def is_venv():
      """Check whether if this workspace is a virtualenv.
      """
      dir_path = os.path.dirname(SRC)
      is_venv_flag = True
  
      if SYS_NAME == "Windows":
          executable_list = ["activate", "pip.exe", "python.exe"]
      elif SYS_NAME in ["Darwin", "Linux"]:
          executable_list = ["activate", "pip", "python"]
  
      for executable in executable_list:
          path = os.path.join(dir_path, BIN_SCRIPTS, executable)
          if not os.path.exists(path):
              is_venv_flag = False
  
      return is_venv_flag