docstr: Check the repr function.
docstr_tok: ["Check","the","repr","function","."]
code: def test_repr(self):
      """
      Check the repr function.
      """
      model = self.model
      ans = str(model)
      self.assertTrue(type(ans) == str)
  
imports: from __future__ import print_function
  from __future__ import division
  from __future__ import absolute_import
  import unittest
  import turicreate
  import math
  import uuid
  import random
  import sys
  import copy
  from turicreate.toolkits import evaluation
  from turicreate.toolkits._main import ToolkitError
  import shutil
  import numpy
  from array import array
  import os
label_desc: Use image node_id 7 for calling the RandomForestRegressionTest obj's underlying member method code with example usage: obj.test_repr() without return types