# add deform conv for fcos head(PaddlePaddle#54)

ppdet/modeling/ops.py

@@ -67,6 +67,7 @@ def DeformConvNorm(input,
                    initializer=None,
                    bias_attr=False,
                    name=None):
+    assert norm_type in ['bn', 'sync_bn', 'affine_channel']
     if bias_attr:
         bias_para = ParamAttr(
             name=name + "_bias",