Fix format issues

python/tvm/tir/op.py

@@ -1812,6 +1812,7 @@ def vectorcombine(dtype, vec1, vec2):
     """
     return call_intrin(dtype, "tir.vectorcombine", vec1, vec2)
 
+
 def dp4a(vec1, vec2, acc = 0):
     """Dot product of two int8x4 vectors and add an optional accumulation
 

tests/python/tir-base/test_tir_op_types.py

@@ -294,13 +294,15 @@ def test_tir_op_vectorhigh():
     expr = tir.vectorhigh("int8x8", vec)
     assert expr.op.name == "tir.vectorhigh"
 
+
 def test_tir_op_dp4a():
     vec1 = tir.Var("vec1", dtype="int8x4")
     vec2 = tir.Var("vec2", dtype="int8x4")
     acc = tir.Var("acc", dtype="int32")
     expr = tir.dp4a(vec1, vec2, acc)
     assert expr.op.name == "tir.dp4a"
 
+
 def test_tir_op_vectorcombine():
     buffer = tir.decl_buffer((4, 4), "int8", offset_factor=1)
     vec = buffer.vload([0, 0], dtype="int8x16")