Format with black

src/qibotn/cutn.py

@@ -368,6 +368,7 @@ def eval_tn_MPI_expectation(qibo_circ, datatype, n_samples=8):
 
     return result, rank
 
+
 def eval_mps(qibo_circ, gate_algo, datatype):
     myconvertor = QiboCircuitToMPS(qibo_circ, gate_algo, dtype=datatype)
     mps_helper = MPSContractionHelper(myconvertor.num_qubits)
@@ -376,6 +377,7 @@ def eval_mps(qibo_circ, gate_algo, datatype):
         myconvertor.mps_tensors, {"handle": myconvertor.handle}
     )
 
+
 def PauliStringGen(nqubits):
     if nqubits <= 0:
         return "Invalid input. N should be a positive integer."