code: def test_p_vals(self):
      tdm = build_hamlet_jz_term_doc_mat()
      j = ScatterChart(
          term_doc_matrix=tdm,
          minimum_term_frequency=0,
          term_significance=LogOddsRatioUninformativeDirichletPrior(),
      ).to_dict("hamlet")
      datum = self._get_data_example(j)
      self.assertIn("p", datum.keys())
  
imports: import sys
  from unittest import TestCase
  import numpy
  import pandas
  from scattertext import LogOddsRatioUninformativeDirichletPrior, scale
  from scattertext import ScatterChart
  from scattertext.ScatterChart import CoordinatesNotRightException, TermDocMatrixHasNoMetadataException, NeedToInjectCoordinatesException
  from scattertext.test.test_corpusFromPandasWithoutCategories import get_term_doc_matrix_without_categories
  from scattertext.test.test_semioticSquare import get_test_corpus
  from scattertext.test.test_termDocMatrixFactory import build_hamlet_jz_term_doc_mat, build_hamlet_jz_corpus_with_meta
label_desc: Use image node_id 9 for calling the TestScatterChart obj's underlying member method code with example usage: obj.test_p_vals() without return types