REVIEW FIX

frontends/concrete-python/concrete/fhe/extensions/synthesis/fhe_function.py

@@ -2,6 +2,7 @@
 INTERNAL extension to synthesize a fhe compatible function from verilog code.
 """
 
+from __future__ import annotations
 from collections import Counter
 from typing import Optional
 

frontends/concrete-python/concrete/fhe/extensions/synthesis/luts_to_fhe.py

@@ -2,6 +2,7 @@
 Convert the simple Tlu Dag to a concrete-python Tracer function.
 """
 
+from __future__ import annotations
 from collections import Counter
 from dataclasses import dataclass
 from typing import Iterable, cast

frontends/concrete-python/concrete/fhe/extensions/synthesis/verilog_to_luts.py

@@ -2,6 +2,7 @@
 Rewrite yosys json output as a simple Tlu Dag.
 """
 
+from __future__ import annotations
 import json
 import os
 import shutil