for pad

x2paddle/core/program.py

@@ -354,7 +354,7 @@ class PaddleGraph(object):
                 remove_default_attrs(layer.kernel, layer.attrs)
             edges_in = self.edges_in.get(layer_id, [])
             edges_out = self.edges_out.get(layer_id, [])
-            if len(edges_in) == 0 and len(edges_out) == 0:
+            if len(edges_in) == 0 and len(edges_out) == 0 and layer.outputs[0] not in self.outputs:
                 continue
 
             line = ""

x2paddle/op_mapper/dygraph/onnx2paddle/onnx_custom_layer/__init__.py

@@ -17,3 +17,4 @@ from .one_hot import OneHot
 from .pad_two_input import PadWithTwoInput
 from .pad_all_dim2 import PadAllDim2
 from .pad_all_dim4 import PadAllDim4
+from .pad_all_dim4_one_input import PadAllDim4WithOneInput
\ No newline at end of file

x2paddle/op_mapper/dygraph/onnx2paddle/onnx_custom_layer/pad_all_dim4_one_input.py

+# Copyright (c) 2020  PaddlePaddle Authors. All Rights Reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License"
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+import paddle
+from x2paddle.core.util import *
+
+class PadAllDim4WithOneInput(object):
+    def __init__(self, pad, value, mode):
+        self.layer_attrs = {}
+        self.layer_attrs['mode'] = mode
+        self.layer_attrs['data_format'] = 'NCHW'
+        self.layer_attrs['value'] = value
+        self.pad1 = pad[0: 4]
+        self.pad2 = pad[4: 9]
+        
+    def __call__(self, x):
+        x = paddle.nn.functional.pad(x=x, pad=self.pad1, **self.layer_attrs)
+        x = paddle.transpose(x, perm=[2, 3, 0, 1])
+        x = paddle.nn.functional.pad(x=x, pad=self.pad2, **self.layer_attrs)
+        out = paddle.transpose(x, perm=[2, 3, 0, 1])
+        return out
\ No newline at end of file

x2paddle/op_mapper/dygraph/onnx2paddle/opset9/opset.py

@@ -415,7 +415,7 @@ class OpSet9():
                     paddle_op = 'paddle.nn.Pad{}D'.format(len(output_shape) - 2)
                     paddings = np.array(pads).reshape(
                         (2, -1)).transpose().astype("int32")
-                    paddings = np.flip(paddings).flatten().tolist()
+                    paddings = np.flip(paddings, axis=0).flatten().tolist()
                     layer_attrs['padding'] = paddings
                 else:
                     if data_shape:
@@ -435,10 +435,16 @@ class OpSet9():
                 if output_shape:
                     assume_pad |= output_shape and 2 * len(output_shape) == len(pads)  # NCHW
                 if assume_pad:
-                    paddle_op = 'paddle.nn.functional.pad'
+                    paddle_op = 'paddle.nn.Pad2D'
                     paddings = np.array(pads).reshape(
-                        (2, -1)).transpose().astype("int32").flatten().tolist()
-                    layer_attrs['pad'] = paddings
+                        (2, -1)).transpose().astype("int32")
+                    paddings = np.flip(paddings, axis=0).flatten().tolist()
+                    if sum(paddings[:4]) == 0:
+                        paddings = paddings[4:]
+                        layer_attrs['padding'] = paddings
+                    else:
+                        layer_attrs["pad"] = paddings
+                        paddle_op = "custom_layer:PadAllDim4WithOneInput"
             else:
                  raise Exception("The padding value {} is wrong!".format(pads))
             self.paddle_graph.add_layer(

x2paddle/op_mapper/static/onnx2paddle/onnx_custom_layer/__init__.py

@@ -14,4 +14,7 @@
 
 
 from .one_hot import one_hot
-from .pad import custom_pad
+from .pad_two_input import pad_with_two_input
\ No newline at end of file
+from .pad_all_dim2 import pad_all_dim2
+from .pad_all_dim4 import pad_all_dim4
+from .pad_all_dim4_one_input import pad_all_dim4_one_input
\ No newline at end of file

x2paddle/op_mapper/static/onnx2paddle/onnx_custom_layer/one_hot.py

@@ -14,31 +14,18 @@
 
 import paddle
 
-def one_hot(self, indices, depth, values, axis):
-    indices_shape = paddle.shape(indices)
-    tmp = paddle.ones_like(indices_shape, dtype="int32")
-    rank = paddle.sum(tmp)
+def one_hot(indices, depth, values, axis):
+    indices_shape = indices.shape
+    rank = len(indices.shape)
+    real_axis = axis
+    if axis < 0:
+        real_axis = axis + rank + 1
     depth_range = paddle.arange(end=depth)
-    zero = paddle.zeros([1], dtype="int32")
-    one = paddle.ones([1], dtype="int32")
-    axis = axis * one
-    new_axis = axis + rank + 1
-    cond = paddle.less_than(axis, zero)
-    real_axis = paddle.where(cond, new_axis, axis)
-    ls = paddle.slice(indices_shape, axes=[0], starts=[0], ends=real_axis)
-    rs = paddle.slice(indices_shape, axes=[0], starts=real_axis, ends=rank)
-    tmp = paddle.ones_like(ls, dtype="int32")
-    ls_len = paddle.sum(tmp)
-    ls_list = paddle.ones(ls_len, dtype="int32")
-    tmp = paddle.ones_like(rs, dtype="int32")
-    rs_len = paddle.sum(tmp)
-    rs_list = paddle.ones(rs_len, dtype="int32")
-    depth_range_shape = paddle.shape(depth_range)
-    targets_shape = paddle.concat([ls_list, depth_range_shape, rs_list], axis=0)
-    targets = paddle.reshape(depth_range, targets_shape)
+    ls = tuple(indices_shape[0: real_axis])
+    rs = tuple(indices_shape[real_axis: rank])
+    targets = paddle.reshape(depth_range, (1,) * (real_axis-0) + tuple(depth_range.shape) + (1,) * (rank-real_axis))
     mod = paddle.mod(indices, depth)
-    v_shape = paddle.concat([ls, paddle.shape(one), rs], axis=0)
-    v = paddle.reshape(mod, v_shape)
+    v = paddle.reshape(mod, ls + (1,) + rs)
     out = targets == v
     out = paddle.cast(out, "float32")
     on_value = paddle.slice(values, axes=[0], starts=[1], ends=[2])

x2paddle/op_mapper/static/onnx2paddle/onnx_custom_layer/pad_all_dim2.py

+# Copyright (c) 2020  PaddlePaddle Authors. All Rights Reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License"
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+import paddle
+
+def pad_all_dim2(x, pad, value, mode):
+    pad = paddle.reshape(pad, shape=[2, -1])
+    pad = paddle.transpose(pad, perm=[1, 0])
+    pad = paddle.reverse(pad, axis=[0])
+    pad = paddle.flatten(pad)
+    pad = paddle.cast(pad, dtype="int32")
+    x = paddle.unsqueeze(x, axis=[0, 1])
+    out = paddle.nn.functional.pad(x=x, 
+                                   pad=pad,
+                                   mode=mode,
+                                   data_format='NCHW',
+                                   value=value)
+    out = paddle.squeeze(out, axis=[0, 1])
+    return out
\ No newline at end of file

x2paddle/op_mapper/static/onnx2paddle/onnx_custom_layer/pad_all_dim4.py

+# Copyright (c) 2020  PaddlePaddle Authors. All Rights Reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License"
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+import paddle
+
+def pad_all_dim4(x, pad, value, mode):
+    pad = paddle.reshape(pad, shape=[2, -1])
+    pad = paddle.transpose(pad, perm=[1, 0])
+    pad = paddle.reverse(pad, axis=[0])
+    pad = paddle.flatten(pad)
+    pad = paddle.cast(pad, dtype="int32")        
+    pad1, pad2 = paddle.split(pad, num_or_sections=2, axis=0)
+    x = paddle.nn.functional.pad(x=x, 
+                                 pad=pad1, 
+                                 mode=mode,
+                                 data_format='NCHW',
+                                 value=value)
+    x = paddle.transpose(x, perm=[2, 3, 0, 1])
+    x = paddle.nn.functional.pad(x=x, 
+                                 pad=pad2,
+                                 mode=mode,
+                                 data_format='NCHW',
+                                 value=value)
+    out = paddle.transpose(x, perm=[2, 3, 0, 1])
+    return out
\ No newline at end of file

x2paddle/op_mapper/static/onnx2paddle/onnx_custom_layer/pad_all_dim4_one_input.py

+# Copyright (c) 2020  PaddlePaddle Authors. All Rights Reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License"
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+import paddle
+
+def pad_all_dim4_one_input(x, pad, value, mode):
+    x = paddle.nn.functional.pad(x=x, 
+                                 pad=pad[0: 4],
+                                 mode=mode,
+                                 data_format='NCHW',
+                                 value=value)
+    x = paddle.transpose(x, perm=[2, 3, 0, 1])
+    x = paddle.nn.functional.pad(x=x,
+                                 pad=pad[4: 9],
+                                 mode=mode,
+                                 data_format='NCHW',
+                                 value=value)
+    out = paddle.transpose(x, perm=[2, 3, 0, 1])
+    return out
\ No newline at end of file

x2paddle/op_mapper/static/onnx2paddle/onnx_custom_layer/pad.py → x2paddle/op_mapper/static/onnx2paddle/onnx_custom_layer/pad_two_input.py

@@ -14,14 +14,15 @@
 
 import paddle
 
-def custom_pad(self, x, pad, value, mode):
-    layer_attrs = {}
-    layer_attrs['mode'] = string(mode)
-    layer_attrs['data_format'] = string('NCHW')
-    layer_attrs['value'] = value
+def pad_with_two_input(x, pad, value, mode, data_format):
     pad = paddle.reshape(pad, shape=[2, -1])
     pad = paddle.transpose(pad, perm=[1, 0])
     pad = paddle.reverse(pad, axis=[0])
     pad = paddle.flatten(pad)
-    out = paddle.nn.functional.pad(x=x, pad=pad, **self.layer_attrs)
+    pad = paddle.cast(pad, dtype="int32")
+    out = paddle.nn.functional.pad(x=x, 
+                                   pad=pad, 
+                                   value=value,
+                                   mode=mode,
+                                   data_format=data_format)
     return out
\ No newline at end of file

x2paddle/op_mapper/static/onnx2paddle/opset9/opset.py

@@ -106,6 +106,9 @@ class OpSet9():
         'ReduceMax': ['paddle.max', 
                       dict(axes='axis', keepdims='keepdim'), 
                       dict(keepdim=1)],
+        'ReduceProd': ['paddle.prod', 
+                      dict(axes='axis', keepdims='keepdim'), 
+                      dict(keepdim=1)],
         # active function
         'Relu': ['paddle.nn.functional.relu'],
         'LeakyRelu': ['paddle.nn.functional.leaky_relu', 
@@ -380,73 +383,122 @@ class OpSet9():
         value = node.get_attr('value', 0.)
         data_shape = val_x.out_shapes[0]
         output_shape = node.out_shapes[0]
-        assume_pad2d = False
+        assume_pad = False
         layer_attrs = {}
         layer_attrs['mode'] = string(mode)
+        layer_attrs['value'] = value
+        if not op_independent:
+            output_name = node.name + '_paded'
+        else:
+            output_name = node.name
+        layer_outputs = [output_name]
         if is_pads_attr:
             paddings = []
-            if len(pads) == 4:
-                assume_pad2d |= mode != 'constant'
+            paddle_op = 'paddle.nn.functional.pad'
+            if len(pads) in [2, 4, 6]:
                 if data_shape:
-                    assume_pad2d |= data_shape and len(data_shape) == 4  # NCHW
+                    assume_pad |= data_shape and 2 * (len(data_shape) - 2) == len(pads) # NCHW
                 if output_shape:
-                    assume_pad2d |= output_shape and len(output_shape) == 4  # NCHW
-            if assume_pad2d:
-                paddle_op = 'paddle.nn.functional.pad'
-                layer_attrs['data_format'] = string('NCHW')
-                layer_attrs['value'] = value
+                    assume_pad |= output_shape and 2 * (len(output_shape) - 2) == len(pads)  # NCHW
+                if assume_pad:
+                    if len(pads) == 2:
+                        data_format = "NCL"
+                    elif len(pads) == 4:
+                        data_format = "NCHW"
                     else:
-                paddle_op = 'paddle.fluid.layers.pad'
-                layer_attrs["pad_value"] = value
-            if len(pads) == 4:
+                        data_format = "NCDHW"
+                    
                     paddings = np.array(pads).reshape(
-                    (-1, 2)).transpose().flatten().tolist()  # SSEE -> SESE
+                        (2, -1)).transpose().astype("int32")
+                    paddings = np.flip(paddings, axis=0).flatten().tolist()
+                    layer_attrs['pad'] = paddings
+                    layer_attrs['data_format'] = data_format
+                else:
+                    if data_shape:
+                        assume_pad |= data_shape and 2 * len(data_shape) == len(pads) # NCHW
+                    if output_shape:
+                        assume_pad |= output_shape and 2 * len(output_shape) == len(pads)  # NCHW
+                    if assume_pad:
+                        paddings = np.array(pads).reshape(
+                            (2, -1)).transpose().astype("int32").flatten().tolist()
+                        layer_attrs['pad'] = paddings
+                    else:
+                        raise Exception("The padding value {} is wrong!".format(pads))
             elif len(pads) == 8:
+                if data_shape:
+                    assume_pad |= data_shape and 2 * len(data_shape) == len(pads) # NCHW
+                if output_shape:
+                    assume_pad |= output_shape and 2 * len(output_shape) == len(pads)  # NCHW
+                if assume_pad:
                     paddings = np.array(pads).reshape(
-                    (-1, 4)).transpose().flatten().tolist()  # SSEE -> SESE
+                        (2, -1)).transpose().astype("int32")
+                    paddings = np.flip(paddings, axis=0).flatten().tolist()
                     if sum(paddings[:4]) == 0:
-                    paddle_op = 'paddle.nn.functional.pad'
                         paddings = paddings[4:]
-                    layer_attrs['value'] = value
-                    if 'pad_value' in layer_attrs:
-                        layer_attrs.pop('pad_value')
-            tmp_paddings = copy.deepcopy(paddings)
-            paddings[0] = tmp_paddings[2]
-            paddings[1] = tmp_paddings[3]
-            paddings[2] = tmp_paddings[0]
-            paddings[3] = tmp_paddings[1]
-            if paddle_op == 'paddle.nn.functional.pad':
                         layer_attrs['pad'] = paddings
                     else:
-                layer_attrs['paddings'] = paddings
-            if op_independent:
-                self.paddle_graph.add_layer(
-                    paddle_op, 
-                    inputs={'x': val_x.name}, 
-                    outputs=[node.name], 
-                    **layer_attrs)
+                        layer_attrs['pad'] = paddings
+                        paddle_op = "custom_layer:pad_all_dim4_one_input"
             else:
+                 raise Exception("The padding value {} is wrong!".format(pads))
             self.paddle_graph.add_layer(
                 paddle_op, 
                 inputs={'x': val_x.name}, 
-                    outputs=[node.name + '_paded'],
+                outputs=layer_outputs, 
                 **layer_attrs)
+            if not op_independent:
                 return node.name + '_paded'
         else:
-            if pad_shape[0] == 4:
-                assume_pad2d |= mode != 'constant'
+            pads_len = val_pad.out_shapes[0][0]
+            if pads_len in [2, 4, 6]:
                 if data_shape:
-                    assume_pad2d |= data_shape and len(data_shape) == 4  # NCHW
+                    assume_pad |= data_shape and 2 * (len(data_shape) - 2) == pads_len # NCHW
                 if output_shape:
-                    assume_pad2d |= output_shape and len(output_shape) == 4  # NCHW
-            if pad_shape[0] == 8 or not assume_pad2d:
-                raise Exception("When the pad shape is 8 and pad is tensor, the op is not supported yet!")
-            layer_attrs['value'] = value
+                    assume_pad |= output_shape and 2 * (len(output_shape) - 2) == pads_len  # NCHW 
+                if assume_pad:
+                    if pads_len == 2:
+                        data_format = "NCL"
+                    elif pads_len == 4:
+                        data_format = "NCHW"
+                    else:
+                        data_format = "NCDHW"
                     self.paddle_graph.add_layer(
-                "custom_layer:custom_pad", 
+                        "custom_layer:pad_with_two_input", 
                         inputs={'x': val_x.name, 'pad': val_pad.name}, 
-                outputs=[node.name + '_paded'], 
-                **layer_attrs)
+                        outputs=layer_outputs,
+                        value=value,
+                        mode=string(mode),
+                        data_format=string(data_format))
+                else:
+                    if data_shape:
+                        assume_pad |= data_shape and 2 * len(data_shape) == pads_len # NCHW
+                    if output_shape:
+                        assume_pad |= output_shape and 2 * len(output_shape) == pads_len  # NCHW
+                    if assume_pad:
+                        if pads_len == 4:
+                            self.paddle_graph.add_layer(
+                                "custom_layer:pad_all_dim2", 
+                                inputs={'x': val_x.name, 'pad': val_pad.name}, 
+                                outputs=layer_outputs, 
+                                value=value,
+                                mode=string(mode))
+                        else:
+                            raise Exception("The padding value is wrong!")
+            elif pads_len == 8:
+                if data_shape:
+                    assume_pad |= data_shape and 2 * len(data_shape) == pads_len # NCHW
+                if output_shape:
+                    assume_pad |= output_shape and 2 * len(output_shape) == pads_len  # NCHW
+                if assume_pad:
+                    self.paddle_graph.add_layer(
+                        "custom_layer:pad_all_dim4", 
+                        inputs={'x': val_x.name, 'pad': val_pad.name}, 
+                        outputs=layer_outputs, 
+                        value=value,
+                        mode=string(mode))
+            else:
+                print(pads_len)
+                raise Exception("The padding value is wrong!")   
             if not op_independent:
                 return node.name + '_paded'
 
@@ -650,15 +702,11 @@ class OpSet9():
                     inputs={"x": indices.name},
                     outputs=[indices_cast],
                     dtype=string('int64'))
-                op_name = name_generator("embedding", self.nn_name2id)
-                output_name = node.name
-                layer_outputs = [op_name, output_name]
                 self.paddle_graph.add_layer(
-                    'paddle.nn.Embedding',
-                    inputs={"x": indices_cast},
-                    outputs=layer_outputs,
-                    param_attr=string(val_x.name),
-                    size=val_x.out_shapes[0])
+                    'paddle.nn.functional.embedding',
+                    inputs={"x": indices_cast,
+                            "weight": val_x.name},
+                    outputs=[node.name])
             else:
                 from functools import reduce
                 reshape_shape = reduce(lambda x, y: x * y, indices_shape)
@@ -830,14 +878,21 @@ class OpSet9():
             starts = self.graph.get_input_node(node, idx=1, copy=True)
             ends = self.graph.get_input_node(node, idx=2, copy=True)
             starts_value = _const_weight_or_none(starts)
+            if starts_value is not None:
+                starts_value = starts_value.tolist()
             ends_value = _const_weight_or_none(ends)
-
+            if ends_value is not None:
+                ends_value = ends_value.tolist()
+            if len(node.inputs) > 2:
+                s_len = len(val_x.out_shapes[0])
+                axes = list(range(s_len))
             if len(node.inputs) > 3:
-                axes = self.graph.get_input_node(node, idx=3, copy=True)
-                axes = _const_weight_or_none(axes, necessary=True)
+                axes_node = self.graph.get_input_node(node, idx=3, copy=True)
+                axes = _const_weight_or_none(axes_node, necessary=True).tolist()
             if len(node.inputs) > 4:
                 steps = self.graph.get_input_node(node, idx=4, copy=True)
-                steps = _const_weight_or_none(steps)
+                steps = _const_weight_or_none(steps).tolist()
+            
             layer_attrs = {
                 "axes": axes,
                 "starts": starts.name,
@@ -873,6 +928,8 @@ class OpSet9():
                     layer_attrs['starts'] = starts_cast
                 if ends.dtype != 'int32':
                     ends_cast = ends.name + '_cast'
+                else:
+                    ends_cast = ends.name
                 self.paddle_graph.add_layer(
                     'paddle.cast',
                     inputs={"x": ends.name},
@@ -888,6 +945,7 @@ class OpSet9():
                     ends[idx] = 2**31 - 1
             layer_attrs = {"axes": axes, "starts": starts, "ends": ends}
 
+
         if steps is not None:
             layer_attrs['strides'] = steps
             self.paddle_graph.add_layer(
@@ -1012,6 +1070,12 @@ class OpSet9():
                     inputs={'x': val_shape.name},
                     outputs=[val_shape.name],
                     shape=val_shape.out_shapes[0])
+            if val_shape.dtype != "int32":
+                self.paddle_graph.add_layer(
+                    'paddle.cast',
+                    inputs={'x': val_shape.name},
+                    outputs=[val_shape.name],
+                    dtype=string("int32"))
             self.paddle_graph.add_layer(
                 'paddle.reshape',
                 inputs={'x': val_x.name,
@@ -1247,7 +1311,10 @@ class OpSet9():
     @print_mapping_info
     def Transpose(self, node):
         val_x = self.graph.get_input_node(node, idx=0, copy=True)
-        perm = node.get_attr('perm')
+        s_len = len(val_x.out_shapes[0])
+        perm_default = list(range(s_len))
+        perm_default.reverse()
+        perm = node.get_attr('perm', perm_default)
         self.paddle_graph.add_layer(
             "paddle.transpose", 
             inputs={"x": val_x.name},
@@ -1620,8 +1687,13 @@ class OpSet9():
         val_x = self.graph.get_input_node(node, idx=0, copy=True)
         self.paddle_graph.add_layer(
             "paddle.shape", 
-            inputs={"x": val_x.name}, 
+            inputs={"input": val_x.name}, 
             outputs=[node.name])
+        self.paddle_graph.add_layer(
+            'paddle.cast',
+            inputs={"x": node.name},
+            outputs=[node.name],
+            dtype=string('int64'))  
         self.paddle_graph.add_layer(
             "paddle.prod",
             inputs={"x": node.name},
@@ -1630,10 +1702,22 @@ class OpSet9():
     @print_mapping_info
     def Sign(self, node):
         val_x = self.graph.get_input_node(node, idx=0, copy=True)
+        if node.dtype not in ["float16", "float32", "float64"]:
+            self.paddle_graph.add_layer(
+                "paddle.cast", 
+                inputs={"x": val_x.name}, 
+                outputs=[val_x.name],
+                dtype=string("float32"))
         self.paddle_graph.add_layer(
             "paddle.sign", 
             inputs={"x": val_x.name}, 
             outputs=[node.name])
+        if node.dtype not in ["float16", "float32", "float64"]:
+            self.paddle_graph.add_layer(
+                "paddle.cast", 
+                inputs={"x": node.name}, 
+                outputs=[node.name],
+                dtype=string(node.dtype))
 
     @print_mapping_info
     def OneHot(self, node):