Update inst/python/kerastools/callback.py

Co-Authored-By: Sigrid Keydana <[email protected]>

Author: dfalbel

inst/python/kerastools/callback.py

@@ -46,7 +46,7 @@ def __init__(self, r_set_context,
     self.r_on_train_batch_begin = r_on_train_batch_begin
     self.r_on_train_batch_end = r_on_train_batch_end
 
-    # requiered when using tf$distributed strategies
+    # required when using tf$distributed strategies
     self._chief_worker_only = False
 
   def on_epoch_begin(self, epoch, logs=None):