docstr: Test building the explainer
docstr_tok: ["Test","building","the","explainer"]
code: def test_build_explainer(self):
      """
      Test building the explainer
      """
      explainer = LimeTextExplainer()
      explainer.build_explainer(predict_fn=None)
      self.assertIsInstance(
          explainer.explainer_object, OriginalLimeTextExplainer
      )
  
file_path: contextual-ai/tests/explainer/test_lime_text_explainer.py
imports: import os
  import unittest
  from lime.lime_text import LimeTextExplainer
  from xai.explainer.explainer_exceptions import ExplainerUninitializedError
  from xai.explainer.text.lime_text_explainer import LimeTextExplainer
label_desc: Use image node_id 3 for calling the TestLimeTextExplainer obj's underlying member method code with example usage: obj.test_build_explainer() without return types