diff --git a/ethosu/vela/tflite/NonMaxSuppressionV4Options.py b/ethosu/vela/tflite/NonMaxSuppressionV4Options.py
index beb361d..6ad10a2 100644
--- a/ethosu/vela/tflite/NonMaxSuppressionV4Options.py
+++ b/ethosu/vela/tflite/NonMaxSuppressionV4Options.py
@@ -3,36 +3,20 @@
 # namespace: tflite
 
 import flatbuffers
-from flatbuffers.compat import import_numpy
-np = import_numpy()
 
 class NonMaxSuppressionV4Options(object):
     __slots__ = ['_tab']
 
     @classmethod
-    def GetRootAs(cls, buf, offset=0):
+    def GetRootAsNonMaxSuppressionV4Options(cls, buf, offset):
         n = flatbuffers.encode.Get(flatbuffers.packer.uoffset, buf, offset)
         x = NonMaxSuppressionV4Options()
         x.Init(buf, n + offset)
         return x
 
-    @classmethod
-    def GetRootAsNonMaxSuppressionV4Options(cls, buf, offset=0):
-        """This method is deprecated. Please switch to GetRootAs."""
-        return cls.GetRootAs(buf, offset)
-    @classmethod
-    def NonMaxSuppressionV4OptionsBufferHasIdentifier(cls, buf, offset, size_prefixed=False):
-        return flatbuffers.util.BufferHasIdentifier(buf, offset, b"\x54\x46\x4C\x33", size_prefixed=size_prefixed)
-
     # NonMaxSuppressionV4Options
     def Init(self, buf, pos):
         self._tab = flatbuffers.table.Table(buf, pos)
 
-def Start(builder): builder.StartObject(0)
-def NonMaxSuppressionV4OptionsStart(builder):
-    """This method is deprecated. Please switch to Start."""
-    return Start(builder)
-def End(builder): return builder.EndObject()
-def NonMaxSuppressionV4OptionsEnd(builder):
-    """This method is deprecated. Please switch to End."""
-    return End(builder)
\ No newline at end of file
+def NonMaxSuppressionV4OptionsStart(builder): builder.StartObject(0)
+def NonMaxSuppressionV4OptionsEnd(builder): return builder.EndObject()