diff --git a/backends/exllamav2/grammar.py b/backends/exllamav2/grammar.py
index 2cb6870..f2abf85 100644
--- a/backends/exllamav2/grammar.py
+++ b/backends/exllamav2/grammar.py
@@ -2,7 +2,10 @@ import traceback
 from exllamav2 import ExLlamaV2, ExLlamaV2Tokenizer
 from exllamav2.generator.filters import ExLlamaV2Filter, ExLlamaV2PrefixFilter
 from lmformatenforcer import JsonSchemaParser, RegexParser
-from lmformatenforcer.integrations.exllamav2 import ExLlamaV2TokenEnforcerFilter, build_token_enforcer_tokenizer_data
+from lmformatenforcer.integrations.exllamav2 import (
+    ExLlamaV2TokenEnforcerFilter,
+    build_token_enforcer_tokenizer_data,
+)
 from loguru import logger
 from typing import List
 from functools import lru_cache
@@ -56,6 +59,7 @@ class ExLlamaV2EbnfFilter(ExLlamaV2Filter):
 def _get_lmfe_tokenizer_data(tokenizer: ExLlamaV2Tokenizer):
     return build_token_enforcer_tokenizer_data(tokenizer)
 
+
 def clear_grammar_func_cache():
     """Flush tokenizer_data cache to avoid holding references to tokenizers after unloading a model"""
 
@@ -93,7 +97,9 @@ class ExLlamaV2Grammar:
         # Allow JSON objects or JSON arrays at the top level
         json_prefixes = ["[", "{"]
 
-        lmfilter = ExLlamaV2TokenEnforcerFilter(schema_parser, _get_lmfe_tokenizer_data(tokenizer))
+        lmfilter = ExLlamaV2TokenEnforcerFilter(
+            schema_parser, _get_lmfe_tokenizer_data(tokenizer)
+        )
         prefix_filter = ExLlamaV2PrefixFilter(model, tokenizer, json_prefixes)
 
         # Append the filters
@@ -118,7 +124,9 @@ class ExLlamaV2Grammar:
 
             return
 
-        lmfilter = ExLlamaV2TokenEnforcerFilter(pattern_parser, _get_lmfe_tokenizer_data(tokenizer))
+        lmfilter = ExLlamaV2TokenEnforcerFilter(
+            pattern_parser, _get_lmfe_tokenizer_data(tokenizer)
+        )
 
         # Append the filters
         self.filters.append(lmfilter)
@@ -146,4 +154,4 @@ class ExLlamaV2Grammar:
 
             return
 
-        self.filters.append(ebnf_filter)
\ No newline at end of file
+        self.filters.append(ebnf_filter)