Fix format issue (#2708)

Author: laxmareddyp

keras_hub/src/tokenizers/v2/byte_pair_tokenizer.py

@@ -5,6 +5,7 @@
 
 import keras
 import numpy as np
+
 try:
     import tokenizers
     from tokenizers import decoders
@@ -14,8 +15,6 @@
     tokenizers = None
 from keras.src.saving import serialization_lib
 
-
-
 from keras_hub.src.api_export import keras_hub_export
 from keras_hub.src.tokenizers import tokenizer
 from keras_hub.src.utils.tensor_utils import is_int_dtype