MLBEDSW-4870: Update to TensorFlow 2.7

Update the flatbuffers generated code to comply with TensorFlow 2.7

Signed-off-by: Rickard Bolin <rickard.bolin@arm.com>
Change-Id: Iff29b05a6e145245861329b4ff9fc9fbd968da53
diff --git a/ethosu/vela/tflite/SignatureDef.py b/ethosu/vela/tflite/SignatureDef.py
index 295ec85..2f0ac97 100644
--- a/ethosu/vela/tflite/SignatureDef.py
+++ b/ethosu/vela/tflite/SignatureDef.py
@@ -10,13 +10,17 @@
     __slots__ = ['_tab']
 
     @classmethod
-    def GetRootAsSignatureDef(cls, buf, offset):
+    def GetRootAs(cls, buf, offset=0):
         n = flatbuffers.encode.Get(flatbuffers.packer.uoffset, buf, offset)
         x = SignatureDef()
         x.Init(buf, n + offset)
         return x
 
     @classmethod
+    def GetRootAsSignatureDef(cls, buf, offset=0):
+        """This method is deprecated. Please switch to GetRootAs."""
+        return cls.GetRootAs(buf, offset)
+    @classmethod
     def SignatureDefBufferHasIdentifier(cls, buf, offset, size_prefixed=False):
         return flatbuffers.util.BufferHasIdentifier(buf, offset, b"\x54\x46\x4C\x33", size_prefixed=size_prefixed)
 
@@ -31,7 +35,7 @@
             x = self._tab.Vector(o)
             x += flatbuffers.number_types.UOffsetTFlags.py_type(j) * 4
             x = self._tab.Indirect(x)
-            from .TensorMap import TensorMap
+            from tflite.TensorMap import TensorMap
             obj = TensorMap()
             obj.Init(self._tab.Bytes, x)
             return obj
@@ -56,7 +60,7 @@
             x = self._tab.Vector(o)
             x += flatbuffers.number_types.UOffsetTFlags.py_type(j) * 4
             x = self._tab.Indirect(x)
-            from .TensorMap import TensorMap
+            from tflite.TensorMap import TensorMap
             obj = TensorMap()
             obj.Init(self._tab.Bytes, x)
             return obj
@@ -75,24 +79,40 @@
         return o == 0
 
     # SignatureDef
-    def MethodName(self):
+    def SignatureKey(self):
         o = flatbuffers.number_types.UOffsetTFlags.py_type(self._tab.Offset(8))
         if o != 0:
             return self._tab.String(o + self._tab.Pos)
         return None
 
     # SignatureDef
-    def Key(self):
-        o = flatbuffers.number_types.UOffsetTFlags.py_type(self._tab.Offset(10))
+    def SubgraphIndex(self):
+        o = flatbuffers.number_types.UOffsetTFlags.py_type(self._tab.Offset(12))
         if o != 0:
-            return self._tab.String(o + self._tab.Pos)
-        return None
+            return self._tab.Get(flatbuffers.number_types.Uint32Flags, o + self._tab.Pos)
+        return 0
 
-def SignatureDefStart(builder): builder.StartObject(4)
+def SignatureDefStart(builder): builder.StartObject(5)
+def Start(builder):
+    return SignatureDefStart(builder)
 def SignatureDefAddInputs(builder, inputs): builder.PrependUOffsetTRelativeSlot(0, flatbuffers.number_types.UOffsetTFlags.py_type(inputs), 0)
+def AddInputs(builder, inputs):
+    return SignatureDefAddInputs(builder, inputs)
 def SignatureDefStartInputsVector(builder, numElems): return builder.StartVector(4, numElems, 4)
+def StartInputsVector(builder, numElems):
+    return SignatureDefStartInputsVector(builder, numElems)
 def SignatureDefAddOutputs(builder, outputs): builder.PrependUOffsetTRelativeSlot(1, flatbuffers.number_types.UOffsetTFlags.py_type(outputs), 0)
+def AddOutputs(builder, outputs):
+    return SignatureDefAddOutputs(builder, outputs)
 def SignatureDefStartOutputsVector(builder, numElems): return builder.StartVector(4, numElems, 4)
-def SignatureDefAddMethodName(builder, methodName): builder.PrependUOffsetTRelativeSlot(2, flatbuffers.number_types.UOffsetTFlags.py_type(methodName), 0)
-def SignatureDefAddKey(builder, key): builder.PrependUOffsetTRelativeSlot(3, flatbuffers.number_types.UOffsetTFlags.py_type(key), 0)
+def StartOutputsVector(builder, numElems):
+    return SignatureDefStartOutputsVector(builder, numElems)
+def SignatureDefAddSignatureKey(builder, signatureKey): builder.PrependUOffsetTRelativeSlot(2, flatbuffers.number_types.UOffsetTFlags.py_type(signatureKey), 0)
+def AddSignatureKey(builder, signatureKey):
+    return SignatureDefAddSignatureKey(builder, signatureKey)
+def SignatureDefAddSubgraphIndex(builder, subgraphIndex): builder.PrependUint32Slot(4, subgraphIndex, 0)
+def AddSubgraphIndex(builder, subgraphIndex):
+    return SignatureDefAddSubgraphIndex(builder, subgraphIndex)
 def SignatureDefEnd(builder): return builder.EndObject()
+def End(builder):
+    return SignatureDefEnd(builder)
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