(self)
Called by main to load all data
        After this call, data related attributes should be setup (e.g. self.tr_set, self.dev_set)
        No return value
Called by main to load all data
        After this call, data related attributes should be setup (e.g. self.tr_set, self.dev_set)
        No return value
Called by main to load all data After this call data related attributes should be setup ( e . g . self . tr_set self . dev_set ) No return value
def load_data(self):
        '''
        Called by main to load all data
        After this call, data related attributes should be setup (e.g. self.tr_set, self.dev_set)
        No return value
        '''
        raise NotImplementedError
def load_data ( self ) : raise NotImplementedError