diff --git a/imperative/python/megengine/functional/nn.py b/imperative/python/megengine/functional/nn.py
index 06a78e73aed48c9570d97248c33f9b70a0e0797b..905a7ac50bd8f64dbaab33aca7eb289bbad852a1 100644
--- a/imperative/python/megengine/functional/nn.py
+++ b/imperative/python/megengine/functional/nn.py
@@ -1579,3 +1579,9 @@ def batched_nms(
     indices = indices[0][: count.item()]
     keep_inds = sorted_idx[indices]
     return keep_inds
+
+
+
+
+from .loss import *  # isort:skip
+from .quantized import conv_bias_activation  # isort:skip
diff --git a/imperative/python/test/unit/functional/test_functional.py b/imperative/python/test/unit/functional/test_functional.py
index f3187ec4d0bf9c3bc36d7a24fa48727400ee550d..3dfce3fadbdead1fcea60870733fddf7b170f661 100644
--- a/imperative/python/test/unit/functional/test_functional.py
+++ b/imperative/python/test/unit/functional/test_functional.py
@@ -551,3 +551,5 @@ def test_nms_is_same():
     assert op1 != op3
     assert op1 != op4
     assert op3 != op4
+
+
diff --git a/src/opr/impl/misc.cpp b/src/opr/impl/misc.cpp
index 3f738d4eab5ccec96b2e419ff645ce2ad4198412..d4c1bb0bedb03c0b29e403ba0fdff1298376e77e 100644
--- a/src/opr/impl/misc.cpp
+++ b/src/opr/impl/misc.cpp
@@ -159,6 +159,7 @@ void Cumsum::init_output_static_infer_desc() {
             {SourceType::DEP, {{input(0), DepType::SHAPE}}, infer_workspace});
 }
 
+
 /* ================= CondTake =================  */
 MGB_DYN_TYPE_OBJ_FINAL_IMPL(CondTake);
 
diff --git a/src/opr/impl/misc.oprdecl b/src/opr/impl/misc.oprdecl
index b2444c650460182ab8c6e9a16f3087ce6d399d28..d76f473d4f93e752458956450169036c3e7c92e8 100644
--- a/src/opr/impl/misc.oprdecl
+++ b/src/opr/impl/misc.oprdecl
@@ -63,4 +63,5 @@ decl_opr('TopK',
          inputs=['data', 'k'], params='TopK',
          desc='Select the top k values from sorted result.')
 
+
 # vim: ft=python
diff --git a/src/opr/impl/misc.sereg.h b/src/opr/impl/misc.sereg.h
index 7c5e7ea6e532543e7f4275c653112f0c5621095e..b8562ee5f9d19818e5b20dc5fd646bb541549a4f 100644
--- a/src/opr/impl/misc.sereg.h
+++ b/src/opr/impl/misc.sereg.h
@@ -70,6 +70,7 @@ namespace opr {
     using CumsumV1 = opr::Cumsum;
     MGB_SEREG_OPR(CumsumV1, 1);
 
+
 } // namespace opr
 } // namespace mgb
 
diff --git a/src/opr/include/megbrain/opr/misc.h b/src/opr/include/megbrain/opr/misc.h
index e6285a41534a9ca289ebe208026ccb47a262e069..314adefc284fd583073f251b07b42a1b4808946f 100644
--- a/src/opr/include/megbrain/opr/misc.h
+++ b/src/opr/include/megbrain/opr/misc.h
@@ -94,6 +94,7 @@ MGB_DEFINE_OPR_CLASS(Cumsum, cg::SingleCNOperatorNodeBaseT<
         void init_output_static_infer_desc() override;
 };
 
+
 namespace intl {
 using CondTakeBase =
         cg::SingleCNOperatorNode<cg::OperatorNodeBase,
diff --git a/src/serialization/impl/schema.fbs b/src/serialization/impl/schema.fbs
index 5d01df552c7810407064683649f12e7c825580fc..2be8687064362a5bd05cd7dc5407c5c9f6dd7ccf 100644
--- a/src/serialization/impl/schema.fbs
+++ b/src/serialization/impl/schema.fbs
@@ -28,6 +28,7 @@ table Blob {
 }
 
 table Reserved0 {}
+table Reserved1 {}
 
 union OperatorParam {
     param.Empty = 1,
@@ -100,6 +101,7 @@ union OperatorParam {
     param.Remap = 68,
     param.NMSKeep = 69,
     param.AdaptivePooling = 70,
+    Reserved1 = 71,
 }
 
 table Operator {
diff --git a/tools/param_defs/mgb_opr_param_defs.py b/tools/param_defs/mgb_opr_param_defs.py
index 6b64364a65d06ba4b677f68d92cfad5197d07b24..bbef32d61805c5cdab0283fc2b9cf8b4635c82cf 100644
--- a/tools/param_defs/mgb_opr_param_defs.py
+++ b/tools/param_defs/mgb_opr_param_defs.py
@@ -143,3 +143,4 @@ pdef('PersistentOutputStorage').add_fields(
                ' no branch is taken')
            )
  )
+