docs: def get_tools_paths(self):
          """Get tools' paths."""
          if settings.DEBUG or is_testing():
              return list(get_apps_tools().values())
  
          else:
              tools_root = settings.FLOW_TOOLS_ROOT
              subdirs = next(os.walk(tools_root))[1]
  
              return [os.path.join(tools_root, sdir) for sdir in subdirs]