docstr: Check the get function. Compare with the answer supplied as a lambda
  function for each field.
docstr_tok: ["Check","the","get","function",".","Compare","with","the","answer","supplied","as","a","lambda","function","for","each","field","."]
code: def test_get(self):
      """
      Check the get function. Compare with the answer supplied as a lambda
      function for each field.
      """
      model = self.model
      for field in self.fields_ans:
          ans = model._get(field)
          self.assertTrue(
              self.get_ans[field](ans),
              """Get failed in field {}. Output was {}.""".format(
                  field, ans
              ),
          )
  
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 4 for calling the BoostedTreesRegressionTest obj's underlying member method code with example usage: obj.test_get() without return types