code: def test_make_serializable(self):
      assert functions.is_valid_json({"x": ["i am serializable", 0.1]})
      assert not functions.is_valid_json(
          {"x": RandomForestClassifier()}
      )
      assert functions.make_serializable(
          {
              "x": ["i am serializable", 0.1],
              "y": RandomForestClassifier(),
          }
      ) == {"x": ["i am serializable", 0.1]}
  
imports: from __future__ import absolute_import, print_function, division, unicode_literals
  import unittest
  import os
  import numpy
  from xcessiv import functions, exceptions
  from sklearn.datasets import load_digits
  from sklearn.ensemble import RandomForestClassifier
  from sklearn.decomposition import PCA
  from sklearn.pipeline import Pipeline
  import pickle
label_desc: Use image node_id 1 for calling the TestMakeSerializable obj's underlying member method code with example usage: obj.test_make_serializable() without return types