What is the opset number?

Every library is versioned. scikit-learn may change the implementation of a specific model. That happens for example with the SVC model where the parameter break_ties was added in 0.22. ONNX does also have a version called opset number. Operator ArgMin was added in opset 1 and changed in opset 11, 12, 13. Sometimes, it is updated to extend the list of types it supports, sometimes, it moves a parameter into the input list. The runtime used to deploy the model does not implement a new version, in that case, a model must be converted by usually using the most recent opset supported by the runtime, we call that opset the targeted opset. An ONNX graph only contains one unique opset, every node must be described following the specifications defined by the latest opset below the targeted opset.

This example considers an IsolationForest and digs into opsets.

Data

A simple example.

from onnx.defs import onnx_opset_version
from skl2onnx import to_onnx
import numpy
import matplotlib.pyplot as plt
from sklearn.ensemble import IsolationForest
from sklearn.datasets import make_blobs

X, y = make_blobs(n_samples=100, n_features=2)

model = IsolationForest(n_estimators=3)
model.fit(X)
labels = model.predict(X)

fig, ax = plt.subplots(1, 1)
for k in (-1, 1):
    ax.plot(X[labels == k, 0], X[labels == k, 1], "o", label="cl%d" % k)
ax.set_title("Sample")
Sample

ONNX

onx = to_onnx(
    model, X[:1].astype(numpy.float32), target_opset={"": 15, "ai.onnx.ml": 2}
)
print(onx)
ir_version: 8
producer_name: "skl2onnx"
producer_version: "1.18.0"
domain: "ai.onnx"
model_version: 0
doc_string: ""
graph {
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    input: "X"
    input: "node_sample0_Gathercst"
    output: "node_sample0_output0"
    name: "node_sample0_Gather"
    op_type: "Gather"
    attribute {
      name: "axis"
      i: 1
      type: INT
    }
    domain: ""
  }
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    input: "X"
    input: "node_sample0_Gathercst"
    output: "node_sample1_output0"
    name: "node_sample1_Gather"
    op_type: "Gather"
    attribute {
      name: "axis"
      i: 1
      type: INT
    }
    domain: ""
  }
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    output: "node_sample2_output0"
    name: "node_sample2_Gather"
    op_type: "Gather"
    attribute {
      name: "axis"
      i: 1
      type: INT
    }
    domain: ""
  }
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    output: "node_sample0_Y0"
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    output: "node_sample2_reshaped0"
    name: "node_sample2_Reshape"
    op_type: "Reshape"
    attribute {
      name: "allowzero"
      i: 0
      type: INT
    }
    domain: ""
  }
  node {
    input: "path_length1_Y0"
    input: "path_length0_Reshapecst"
    output: "path_length1_reshaped0"
    name: "path_length1_Reshape"
    op_type: "Reshape"
    attribute {
      name: "allowzero"
      i: 0
      type: INT
    }
    domain: ""
  }
  node {
    input: "path_length2_Y0"
    input: "path_length0_Reshapecst"
    output: "path_length2_reshaped0"
    name: "path_length2_Reshape"
    op_type: "Reshape"
    attribute {
      name: "allowzero"
      i: 0
      type: INT
    }
    domain: ""
  }
  node {
    input: "eq2_0_C0"
    output: "eq2_0_output0"
    name: "eq2_0_Cast"
    op_type: "Cast"
    attribute {
      name: "to"
      i: 1
      type: INT
    }
    domain: ""
  }
  node {
    input: "plus2_0_C0"
    output: "plus2_0_output0"
    name: "plus2_0_Cast"
    op_type: "Cast"
    attribute {
      name: "to"
      i: 1
      type: INT
    }
    domain: ""
  }
  node {
    input: "node_sample1_reshaped0"
    input: "dec_Powcst"
    output: "eq2_1_C0"
    name: "eq2_1_Equal"
    op_type: "Equal"
    domain: ""
  }
  node {
    input: "node_sample2_reshaped0"
    input: "dec_Powcst"
    output: "eq2_2_C0"
    name: "eq2_2_Equal"
    op_type: "Equal"
    domain: ""
  }
  node {
    input: "node_sample1_reshaped0"
    input: "dec_Powcst"
    output: "plus2_1_C0"
    name: "plus2_1_Greater"
    op_type: "Greater"
    domain: ""
  }
  node {
    input: "node_sample2_reshaped0"
    input: "dec_Powcst"
    output: "plus2_2_C0"
    name: "plus2_2_Greater"
    op_type: "Greater"
    domain: ""
  }
  node {
    input: "eq2_1_C0"
    output: "eq2_1_output0"
    name: "eq2_1_Cast"
    op_type: "Cast"
    attribute {
      name: "to"
      i: 1
      type: INT
    }
    domain: ""
  }
  node {
    input: "eq2_2_C0"
    output: "eq2_2_output0"
    name: "eq2_2_Cast"
    op_type: "Cast"
    attribute {
      name: "to"
      i: 1
      type: INT
    }
    domain: ""
  }
  node {
    input: "plus2_1_C0"
    output: "plus2_1_output0"
    name: "plus2_1_Cast"
    op_type: "Cast"
    attribute {
      name: "to"
      i: 1
      type: INT
    }
    domain: ""
  }
  node {
    input: "plus2_2_C0"
    output: "plus2_2_output0"
    name: "plus2_2_Cast"
    op_type: "Cast"
    attribute {
      name: "to"
      i: 1
      type: INT
    }
    domain: ""
  }
  node {
    input: "plus2_0_output0"
    input: "node_sample0_reshaped0"
    output: "eqp2ps0_C0"
    name: "eqp2ps0_Mul"
    op_type: "Mul"
    domain: ""
  }
  node {
    input: "eqp2ps0_C0"
    input: "eqp2p_m1_0_Addcst"
    output: "eqp2p_m1_0_C0"
    name: "eqp2p_m1_0_Add"
    op_type: "Add"
    domain: ""
  }
  node {
    input: "eqp2ps0_C0"
    input: "eqp2p_m1_0_Maxcst"
    output: "eqp_ns0_max0"
    name: "eqp_ns0_Max"
    op_type: "Max"
    domain: ""
  }
  node {
    input: "plus2_1_output0"
    input: "node_sample1_reshaped0"
    output: "eqp2ps1_C0"
    name: "eqp2ps1_Mul"
    op_type: "Mul"
    domain: ""
  }
  node {
    input: "plus2_2_output0"
    input: "node_sample2_reshaped0"
    output: "eqp2ps2_C0"
    name: "eqp2ps2_Mul"
    op_type: "Mul"
    domain: ""
  }
  node {
    input: "eqp2ps1_C0"
    input: "eqp2p_m1_0_Addcst"
    output: "eqp2p_m1_1_C0"
    name: "eqp2p_m1_1_Add"
    op_type: "Add"
    domain: ""
  }
  node {
    input: "eqp2ps2_C0"
    input: "eqp2p_m1_0_Addcst"
    output: "eqp2p_m1_2_C0"
    name: "eqp2p_m1_2_Add"
    op_type: "Add"
    domain: ""
  }
  node {
    input: "eqp2p_m1_0_C0"
    input: "eqp2p_m1_0_Maxcst"
    output: "eqp2p_m1_0_max0"
    name: "eqp2p_m1_0_Max"
    op_type: "Max"
    domain: ""
  }
  node {
    input: "eqp2p_m1_0_C0"
    input: "eqp2p_m1_0_Maxcst1"
    output: "eqp2p_m1_0_max02"
    name: "eqp2p_m1_0_Max1"
    op_type: "Max"
    domain: ""
  }
  node {
    input: "eqp2ps1_C0"
    input: "eqp2p_m1_0_Maxcst"
    output: "eqp_ns1_max0"
    name: "eqp_ns1_Max"
    op_type: "Max"
    domain: ""
  }
  node {
    input: "eqp2ps2_C0"
    input: "eqp2p_m1_0_Maxcst"
    output: "eqp_ns2_max0"
    name: "eqp_ns2_Max"
    op_type: "Max"
    domain: ""
  }
  node {
    input: "eqp2p_m1_0_max02"
    input: "eqp_ns0_max0"
    output: "eqp_ns0_C01"
    name: "eqp_ns0_Div"
    op_type: "Div"
    domain: ""
  }
  node {
    input: "eqp2p_m1_0_max0"
    output: "eqp_log0_output0"
    name: "eqp_log0_Log"
    op_type: "Log"
    domain: ""
  }
  node {
    input: "eqp2p_m1_1_C0"
    input: "eqp2p_m1_0_Maxcst"
    output: "eqp2p_m1_1_max0"
    name: "eqp2p_m1_1_Max"
    op_type: "Max"
    domain: ""
  }
  node {
    input: "eqp2p_m1_1_C0"
    input: "eqp2p_m1_0_Maxcst1"
    output: "eqp2p_m1_1_max02"
    name: "eqp2p_m1_1_Max1"
    op_type: "Max"
    domain: ""
  }
  node {
    input: "eqp2p_m1_2_C0"
    input: "eqp2p_m1_0_Maxcst"
    output: "eqp2p_m1_2_max0"
    name: "eqp2p_m1_2_Max"
    op_type: "Max"
    domain: ""
  }
  node {
    input: "eqp2p_m1_2_C0"
    input: "eqp2p_m1_0_Maxcst1"
    output: "eqp2p_m1_2_max02"
    name: "eqp2p_m1_2_Max1"
    op_type: "Max"
    domain: ""
  }
  node {
    input: "eqp_log0_output0"
    input: "eqp_log0_Addcst"
    output: "eqp_log0_C01"
    name: "eqp_log0_Add"
    op_type: "Add"
    domain: ""
  }
  node {
    input: "eqp2p_m1_1_max02"
    input: "eqp_ns1_max0"
    output: "eqp_ns1_C01"
    name: "eqp_ns1_Div"
    op_type: "Div"
    domain: ""
  }
  node {
    input: "eqp2p_m1_2_max02"
    input: "eqp_ns2_max0"
    output: "eqp_ns2_C01"
    name: "eqp_ns2_Div"
    op_type: "Div"
    domain: ""
  }
  node {
    input: "eqp2p_m1_1_max0"
    output: "eqp_log1_output0"
    name: "eqp_log1_Log"
    op_type: "Log"
    domain: ""
  }
  node {
    input: "eqp2p_m1_2_max0"
    output: "eqp_log2_output0"
    name: "eqp_log2_Log"
    op_type: "Log"
    domain: ""
  }
  node {
    input: "eqp_ns0_C01"
    input: "eqp_ns0_Mulcst"
    output: "eqp_ns0_C0"
    name: "eqp_ns0_Mul"
    op_type: "Mul"
    domain: ""
  }
  node {
    input: "eqp_log1_output0"
    input: "eqp_log0_Addcst"
    output: "eqp_log1_C01"
    name: "eqp_log1_Add"
    op_type: "Add"
    domain: ""
  }
  node {
    input: "eqp_log2_output0"
    input: "eqp_log0_Addcst"
    output: "eqp_log2_C01"
    name: "eqp_log2_Add"
    op_type: "Add"
    domain: ""
  }
  node {
    input: "eqp_log0_C01"
    input: "dec_Powcst"
    output: "eqp_log0_C0"
    name: "eqp_log0_Mul"
    op_type: "Mul"
    domain: ""
  }
  node {
    input: "eqp_ns1_C01"
    input: "eqp_ns0_Mulcst"
    output: "eqp_ns1_C0"
    name: "eqp_ns1_Mul"
    op_type: "Mul"
    domain: ""
  }
  node {
    input: "eqp_ns2_C01"
    input: "eqp_ns0_Mulcst"
    output: "eqp_ns2_C0"
    name: "eqp_ns2_Mul"
    op_type: "Mul"
    domain: ""
  }
  node {
    input: "eqp_log0_C0"
    input: "eqp_ns0_C0"
    output: "avlog0_C01"
    name: "avlog0_Add"
    op_type: "Add"
    domain: ""
  }
  node {
    input: "eqp_log1_C01"
    input: "dec_Powcst"
    output: "eqp_log1_C0"
    name: "eqp_log1_Mul"
    op_type: "Mul"
    domain: ""
  }
  node {
    input: "eqp_log2_C01"
    input: "dec_Powcst"
    output: "eqp_log2_C0"
    name: "eqp_log2_Mul"
    op_type: "Mul"
    domain: ""
  }
  node {
    input: "eqp_log1_C0"
    input: "eqp_ns1_C0"
    output: "avlog1_C01"
    name: "avlog1_Add"
    op_type: "Add"
    domain: ""
  }
  node {
    input: "eqp_log2_C0"
    input: "eqp_ns2_C0"
    output: "avlog2_C01"
    name: "avlog2_Add"
    op_type: "Add"
    domain: ""
  }
  node {
    input: "avlog0_C01"
    input: "plus2_0_output0"
    output: "avlog0_C0"
    name: "avlog0_Mul"
    op_type: "Mul"
    domain: ""
  }
  node {
    input: "eq2_0_output0"
    input: "avlog0_C0"
    output: "avpl0_C0"
    name: "avpl0_Add"
    op_type: "Add"
    domain: ""
  }
  node {
    input: "avlog1_C01"
    input: "plus2_1_output0"
    output: "avlog1_C0"
    name: "avlog1_Mul"
    op_type: "Mul"
    domain: ""
  }
  node {
    input: "avlog2_C01"
    input: "plus2_2_output0"
    output: "avlog2_C0"
    name: "avlog2_Mul"
    op_type: "Mul"
    domain: ""
  }
  node {
    input: "eq2_1_output0"
    input: "avlog1_C0"
    output: "avpl1_C0"
    name: "avpl1_Add"
    op_type: "Add"
    domain: ""
  }
  node {
    input: "eq2_2_output0"
    input: "avlog2_C0"
    output: "avpl2_C0"
    name: "avpl2_Add"
    op_type: "Add"
    domain: ""
  }
  node {
    input: "path_length0_reshaped0"
    input: "avpl0_C0"
    output: "depth0_C01"
    name: "depth0_Add"
    op_type: "Add"
    domain: ""
  }
  node {
    input: "depth0_C01"
    input: "eqp2p_m1_0_Addcst"
    output: "depth0_C0"
    name: "depth0_Add1"
    op_type: "Add"
    domain: ""
  }
  node {
    input: "path_length1_reshaped0"
    input: "avpl1_C0"
    output: "depth1_C01"
    name: "depth1_Add"
    op_type: "Add"
    domain: ""
  }
  node {
    input: "path_length2_reshaped0"
    input: "avpl2_C0"
    output: "depth2_C01"
    name: "depth2_Add"
    op_type: "Add"
    domain: ""
  }
  node {
    input: "depth1_C01"
    input: "eqp2p_m1_0_Addcst"
    output: "depth1_C0"
    name: "depth1_Add1"
    op_type: "Add"
    domain: ""
  }
  node {
    input: "depth2_C01"
    input: "eqp2p_m1_0_Addcst"
    output: "depth2_C0"
    name: "depth2_Add1"
    op_type: "Add"
    domain: ""
  }
  node {
    input: "depth0_C0"
    input: "depth1_C0"
    input: "depth2_C0"
    output: "dec_sum0"
    name: "dec_Sum"
    op_type: "Sum"
    domain: ""
  }
  node {
    input: "dec_sum0"
    input: "dec_Divcst"
    output: "dec_C0"
    name: "dec_Div"
    op_type: "Div"
    domain: ""
  }
  node {
    input: "dec_C0"
    output: "dec_Y01"
    name: "dec_Neg"
    op_type: "Neg"
    domain: ""
  }
  node {
    input: "dec_Powcst"
    input: "dec_Y01"
    output: "dec_Z0"
    name: "dec_Pow"
    op_type: "Pow"
    domain: ""
  }
  node {
    input: "dec_Z0"
    output: "dec_Y0"
    name: "dec_Neg1"
    op_type: "Neg"
    domain: ""
  }
  node {
    input: "dec_Y0"
    input: "dec_Addcst"
    output: "scores"
    name: "dec_Add"
    op_type: "Add"
    domain: ""
  }
  node {
    input: "scores"
    input: "eqp2p_m1_0_Maxcst1"
    output: "predict_C01"
    name: "predict_Less"
    op_type: "Less"
    domain: ""
  }
  node {
    input: "predict_C01"
    output: "predict_output0"
    name: "predict_Cast"
    op_type: "Cast"
    attribute {
      name: "to"
      i: 7
      type: INT
    }
    domain: ""
  }
  node {
    input: "predict_output0"
    input: "predict_Mulcst"
    output: "predict_C0"
    name: "predict_Mul"
    op_type: "Mul"
    domain: ""
  }
  node {
    input: "predict_C0"
    input: "predict_Addcst"
    output: "label"
    name: "predict_Add"
    op_type: "Add"
    domain: ""
  }
  name: "ONNX(IsolationForest)"
  initializer {
    dims: 1
    data_type: 1
    float_data: 2
    name: "dec_Powcst"
  }
  initializer {
    dims: 2
    data_type: 7
    int64_data: 0
    int64_data: 1
    name: "node_sample0_Gathercst"
  }
  initializer {
    dims: 2
    data_type: 7
    int64_data: -1
    int64_data: 1
    name: "path_length0_Reshapecst"
  }
  initializer {
    dims: 1
    data_type: 1
    float_data: -1
    name: "eqp2p_m1_0_Addcst"
  }
  initializer {
    dims: 1
    data_type: 1
    float_data: 1
    name: "eqp2p_m1_0_Maxcst"
  }
  initializer {
    dims: 1
    data_type: 1
    float_data: 0.577215672
    name: "eqp_log0_Addcst"
  }
  initializer {
    dims: 1
    data_type: 1
    float_data: 0
    name: "eqp2p_m1_0_Maxcst1"
  }
  initializer {
    dims: 1
    data_type: 1
    float_data: -2
    name: "eqp_ns0_Mulcst"
  }
  initializer {
    dims: 1
    dims: 1
    data_type: 1
    float_data: 25.0940132
    name: "dec_Divcst"
  }
  initializer {
    dims: 1
    data_type: 1
    float_data: 0.5
    name: "dec_Addcst"
  }
  initializer {
    dims: 1
    data_type: 7
    int64_data: -2
    name: "predict_Mulcst"
  }
  initializer {
    dims: 1
    data_type: 7
    int64_data: 1
    name: "predict_Addcst"
  }
  input {
    name: "X"
    type {
      tensor_type {
        elem_type: 1
        shape {
          dim {
          }
          dim {
            dim_value: 2
          }
        }
      }
    }
  }
  output {
    name: "label"
    type {
      tensor_type {
        elem_type: 7
        shape {
          dim {
          }
          dim {
            dim_value: 1
          }
        }
      }
    }
  }
  output {
    name: "scores"
    type {
      tensor_type {
        elem_type: 1
        shape {
          dim {
          }
          dim {
            dim_value: 1
          }
        }
      }
    }
  }
}
opset_import {
  domain: ""
  version: 15
}
opset_import {
  domain: "ai.onnx.ml"
  version: 2
}

The last line shows the opsets. Let’s extract it.

domains = onx.opset_import
for dom in domains:
    print("domain: %r, version: %r" % (dom.domain, dom.version))
domain: '', version: 15
domain: 'ai.onnx.ml', version: 2

There are two opsets, one for standard operators, the other for machine learning operators.

ONNX and opset

The converter can convert a model to an older opset than the default one, from 1 to the last available one.

def get_domain_opset(onx):
    domains = onx.opset_import
    res = [{"domain": dom.domain, "version": dom.version} for dom in domains]
    return {d["domain"]: d["version"] for d in res}


for opset in range(6, onnx_opset_version() + 1):
    try:
        onx = to_onnx(
            model,
            X[:1].astype(numpy.float32),
            target_opset={"": opset, "ai.onnx.ml": 2},
        )
    except RuntimeError as e:
        print("target: %r error: %r" % (opset, e))
        continue
    nodes = len(onx.graph.node)
    print("target: %r --> %s %d" % (opset, get_domain_opset(onx), nodes))
target: 6 --> {'ai.onnx.ml': 2, '': 6} 91
target: 7 --> {'': 7, 'ai.onnx.ml': 2} 91
target: 8 --> {'': 8, 'ai.onnx.ml': 2} 91
target: 9 --> {'': 9, 'ai.onnx.ml': 2} 91
target: 10 --> {'ai.onnx.ml': 2, '': 10} 91
target: 11 --> {'ai.onnx.ml': 2, '': 11} 91
target: 12 --> {'': 12, 'ai.onnx.ml': 2} 91
target: 13 --> {'': 13, 'ai.onnx.ml': 2} 91
target: 14 --> {'': 14, 'ai.onnx.ml': 2} 91
target: 15 --> {'': 15, 'ai.onnx.ml': 2} 91
target: 16 --> {'': 16, 'ai.onnx.ml': 2} 91
target: 17 --> {'': 17, 'ai.onnx.ml': 2} 91
target: 18 --> {'': 18, 'ai.onnx.ml': 2} 91
target: 19 --> {'': 19, 'ai.onnx.ml': 2} 91
target: 20 --> {'': 20, 'ai.onnx.ml': 2} 91
target: 21 --> {'': 21, 'ai.onnx.ml': 2} 91
/home/xadupre/github/sklearn-onnx/skl2onnx/common/_topology.py:1510: UserWarning: Parameter target_opset 22 > 21 is higher than the the latest tested version.
  warnings.warn(
target: 22 error: RuntimeError("The model is using version 22 of domain '' not supported yet by this library. You need to specify target_opset={'': 21}.")
/home/xadupre/github/sklearn-onnx/skl2onnx/common/_topology.py:1510: UserWarning: Parameter target_opset 23 > 21 is higher than the the latest tested version.
  warnings.warn(
target: 23 error: RuntimeError("The model is using version 23 of domain '' not supported yet by this library. You need to specify target_opset={'': 21}.")

It shows that the model cannot be converted for opset below 5. Operator Reshape changed in opset 5: a parameter became an input. The converter does not support opset < 5 because runtimes usually do not.

Other opsets

The previous example changed the opset of the main domain '' but the other opset domain can be changed as well.

for opset in range(9, onnx_opset_version() + 1):
    for opset_ml in range(1, 4):
        tops = {"": opset, "ai.onnx.ml": opset_ml}
        try:
            print("try target_opset:", tops)
            onx = to_onnx(model, X[:1].astype(numpy.float32), target_opset=tops)
        except RuntimeError as e:
            print("target: %r error: %r" % (opset, e))
            continue
        nodes = len(onx.graph.node)
        print("target: %r --> %s %d" % (opset, get_domain_opset(onx), nodes))
try target_opset: {'': 9, 'ai.onnx.ml': 1}
target: 9 error: RuntimeError("This converter requires at least opset 2 for domain 'ai.onnx.ml'.")
try target_opset: {'': 9, 'ai.onnx.ml': 2}
target: 9 --> {'': 9, 'ai.onnx.ml': 2} 91
try target_opset: {'': 9, 'ai.onnx.ml': 3}
target: 9 --> {'': 9, 'ai.onnx.ml': 3} 91
try target_opset: {'': 10, 'ai.onnx.ml': 1}
target: 10 error: RuntimeError("This converter requires at least opset 2 for domain 'ai.onnx.ml'.")
try target_opset: {'': 10, 'ai.onnx.ml': 2}
target: 10 --> {'ai.onnx.ml': 2, '': 10} 91
try target_opset: {'': 10, 'ai.onnx.ml': 3}
target: 10 --> {'ai.onnx.ml': 3, '': 10} 91
try target_opset: {'': 11, 'ai.onnx.ml': 1}
target: 11 error: RuntimeError("This converter requires at least opset 2 for domain 'ai.onnx.ml'.")
try target_opset: {'': 11, 'ai.onnx.ml': 2}
target: 11 --> {'ai.onnx.ml': 2, '': 11} 91
try target_opset: {'': 11, 'ai.onnx.ml': 3}
target: 11 --> {'': 11, 'ai.onnx.ml': 3} 91
try target_opset: {'': 12, 'ai.onnx.ml': 1}
target: 12 error: RuntimeError("This converter requires at least opset 2 for domain 'ai.onnx.ml'.")
try target_opset: {'': 12, 'ai.onnx.ml': 2}
target: 12 --> {'': 12, 'ai.onnx.ml': 2} 91
try target_opset: {'': 12, 'ai.onnx.ml': 3}
target: 12 --> {'': 12, 'ai.onnx.ml': 3} 91
try target_opset: {'': 13, 'ai.onnx.ml': 1}
target: 13 error: RuntimeError("This converter requires at least opset 2 for domain 'ai.onnx.ml'.")
try target_opset: {'': 13, 'ai.onnx.ml': 2}
target: 13 --> {'': 13, 'ai.onnx.ml': 2} 91
try target_opset: {'': 13, 'ai.onnx.ml': 3}
target: 13 --> {'': 13, 'ai.onnx.ml': 3} 91
try target_opset: {'': 14, 'ai.onnx.ml': 1}
target: 14 error: RuntimeError("This converter requires at least opset 2 for domain 'ai.onnx.ml'.")
try target_opset: {'': 14, 'ai.onnx.ml': 2}
target: 14 --> {'': 14, 'ai.onnx.ml': 2} 91
try target_opset: {'': 14, 'ai.onnx.ml': 3}
target: 14 --> {'': 14, 'ai.onnx.ml': 3} 91
try target_opset: {'': 15, 'ai.onnx.ml': 1}
target: 15 error: RuntimeError("This converter requires at least opset 2 for domain 'ai.onnx.ml'.")
try target_opset: {'': 15, 'ai.onnx.ml': 2}
target: 15 --> {'': 15, 'ai.onnx.ml': 2} 91
try target_opset: {'': 15, 'ai.onnx.ml': 3}
target: 15 --> {'': 15, 'ai.onnx.ml': 3} 91
try target_opset: {'': 16, 'ai.onnx.ml': 1}
target: 16 error: RuntimeError("This converter requires at least opset 2 for domain 'ai.onnx.ml'.")
try target_opset: {'': 16, 'ai.onnx.ml': 2}
target: 16 --> {'': 16, 'ai.onnx.ml': 2} 91
try target_opset: {'': 16, 'ai.onnx.ml': 3}
target: 16 --> {'': 16, 'ai.onnx.ml': 3} 91
try target_opset: {'': 17, 'ai.onnx.ml': 1}
target: 17 error: RuntimeError("This converter requires at least opset 2 for domain 'ai.onnx.ml'.")
try target_opset: {'': 17, 'ai.onnx.ml': 2}
target: 17 --> {'': 17, 'ai.onnx.ml': 2} 91
try target_opset: {'': 17, 'ai.onnx.ml': 3}
target: 17 --> {'': 17, 'ai.onnx.ml': 3} 91
try target_opset: {'': 18, 'ai.onnx.ml': 1}
target: 18 error: RuntimeError("This converter requires at least opset 2 for domain 'ai.onnx.ml'.")
try target_opset: {'': 18, 'ai.onnx.ml': 2}
target: 18 --> {'': 18, 'ai.onnx.ml': 2} 91
try target_opset: {'': 18, 'ai.onnx.ml': 3}
target: 18 --> {'': 18, 'ai.onnx.ml': 3} 91
try target_opset: {'': 19, 'ai.onnx.ml': 1}
target: 19 error: RuntimeError("This converter requires at least opset 2 for domain 'ai.onnx.ml'.")
try target_opset: {'': 19, 'ai.onnx.ml': 2}
target: 19 --> {'': 19, 'ai.onnx.ml': 2} 91
try target_opset: {'': 19, 'ai.onnx.ml': 3}
target: 19 --> {'': 19, 'ai.onnx.ml': 3} 91
try target_opset: {'': 20, 'ai.onnx.ml': 1}
target: 20 error: RuntimeError("This converter requires at least opset 2 for domain 'ai.onnx.ml'.")
try target_opset: {'': 20, 'ai.onnx.ml': 2}
target: 20 --> {'': 20, 'ai.onnx.ml': 2} 91
try target_opset: {'': 20, 'ai.onnx.ml': 3}
target: 20 --> {'': 20, 'ai.onnx.ml': 3} 91
try target_opset: {'': 21, 'ai.onnx.ml': 1}
target: 21 error: RuntimeError("This converter requires at least opset 2 for domain 'ai.onnx.ml'.")
try target_opset: {'': 21, 'ai.onnx.ml': 2}
target: 21 --> {'': 21, 'ai.onnx.ml': 2} 91
try target_opset: {'': 21, 'ai.onnx.ml': 3}
target: 21 --> {'': 21, 'ai.onnx.ml': 3} 91
try target_opset: {'': 22, 'ai.onnx.ml': 1}
/home/xadupre/github/sklearn-onnx/skl2onnx/common/_topology.py:1510: UserWarning: Parameter target_opset 22 > 21 is higher than the the latest tested version.
  warnings.warn(
target: 22 error: RuntimeError("This converter requires at least opset 2 for domain 'ai.onnx.ml'.")
try target_opset: {'': 22, 'ai.onnx.ml': 2}
target: 22 error: RuntimeError("The model is using version 22 of domain '' not supported yet by this library. You need to specify target_opset={'': 21}.")
try target_opset: {'': 22, 'ai.onnx.ml': 3}
/home/xadupre/github/sklearn-onnx/skl2onnx/common/_topology.py:1510: UserWarning: Parameter target_opset 22 > 21 is higher than the the latest tested version.
  warnings.warn(
target: 22 error: RuntimeError("The model is using version 22 of domain '' not supported yet by this library. You need to specify target_opset={'': 21}.")
try target_opset: {'': 23, 'ai.onnx.ml': 1}
/home/xadupre/github/sklearn-onnx/skl2onnx/common/_topology.py:1510: UserWarning: Parameter target_opset 23 > 21 is higher than the the latest tested version.
  warnings.warn(
target: 23 error: RuntimeError("This converter requires at least opset 2 for domain 'ai.onnx.ml'.")
try target_opset: {'': 23, 'ai.onnx.ml': 2}
target: 23 error: RuntimeError("The model is using version 23 of domain '' not supported yet by this library. You need to specify target_opset={'': 21}.")
try target_opset: {'': 23, 'ai.onnx.ml': 3}
/home/xadupre/github/sklearn-onnx/skl2onnx/common/_topology.py:1510: UserWarning: Parameter target_opset 23 > 21 is higher than the the latest tested version.
  warnings.warn(
target: 23 error: RuntimeError("The model is using version 23 of domain '' not supported yet by this library. You need to specify target_opset={'': 21}.")

Total running time of the script: (0 minutes 1.107 seconds)

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