                                          file_type,
                                          command,
                                          action,
                                          variable)
          self.return_file = getattr(self, "_{}".format(self._handletype.lower()))()
          logger.debug("Initialized %s", self.__class__.__name__)
  
      @property
      def _filetypes(self):
          """ dict: The accepted extensions for each file type for opening/saving """
 
</s> remove         kwargs = dict()
 </s> add         kwargs = dict(master=self._dummy_master)
 </s> remove             return dict()
 </s> add             return {} </s> remove                 for sess_id, sess in self._state.get("sessions", dict()).items()}
 </s> add                 for sess_id, sess in self._state.get("sessions", {}).items()} </s> remove         self._funcs = dict()
 </s> add         self._funcs = {}
        self.return_file = getattr(self, f"_{self._handletype.lower()}")()
        self._remove_dummy_master()

                                          file_type,
                                          command,
                                          action,
                                          variable)
        self.return_file = getattr(self, f"_{self._handletype.lower()}")()
        self._remove_dummy_master()

          logger.debug("Initialized %s", self.__class__.__name__)
  
      @property
      def _filetypes(self):
          """ dict: The accepted extensions for each file type for opening/saving """
keep keep keep keep replace keep keep keep keep keep
 Update code to support Tensorflow versions up to 2.8 (#1213)

* Update maximum tf version in setup + requirements

* - bump max version of tf version in launcher
- standardise tf version check

* update keras get_custom_objects  for tf>2.6

* bugfix: force black text in GUI file dialogs (linux)

* dssim loss - Move to stock tf.ssim function

* Update optimizer imports for compatibility

* fix logging for tf2.8

* Fix GUI graphing for TF2.8

* update tests

* bump requirements.txt versions

* Remove limit on nvidia-ml-py

* Graphing bugfixes
  - Prevent live graph from displaying if data not yet available

* bugfix: Live graph. Collect loss labels correctly

* fix: live graph - swallow inconsistent loss errors

* Bugfix: Prevent live graph from clearing during training

* Fix graphing for AMD 
lib/gui/utils.py