code: def test_create(self):
      model = tc.boosted_trees_classifier.create(
          self.dtrain,
          target="label",
          validation_set=self.dtest,
          **self.param,
      )
  
      self.assertTrue(model is not None)
      self.assertGreater(
          model.evaluate(self.dtest, "accuracy")["accuracy"], 0.9
      )
  
      dtrain = self.dtrain[:]
      dtrain["label"] = 10
      self.assertRaises(
          ToolkitError,
          lambda: tc.boosted_trees_classifier.create(
              self.dtrain, target="label_wrong", **self.param
          ),
      )
  
imports: from __future__ import print_function
  from __future__ import division
  from __future__ import absolute_import
  import unittest
  import turicreate
  import uuid
  import random
  import copy
  from turicreate.toolkits._main import ToolkitError
  import turicreate.toolkits.evaluation
  import shutil
  from array import array
  import os
label_desc: Use image node_id 1 for calling the BoostedTreesClassifierTest obj's underlying member method code with example usage: obj.test_create() without return types