class_docstr: Test st.latex APIs.
class_docstr_tok: ["Test","st.latex","APIs","."]
docstr: Test st.latex with help.
docstr_tok: ["Test","st.latex","with","help","."]
code: def test_st_latex_with_help(self):
      """Test st.latex with help."""
      st.latex(
          r"""
              a + ar + a r^2 + a r^3 + \cdots + a r^{n-1} =
              \sum_{k=0}^{n-1} ar^k =
              a \left(\frac{1-r^{n}}{1-r}\right)
              """,
          help="help text",
      )
      el = self.get_delta_from_queue().new_element
      self.assertEqual(el.markdown.help, "help text")
  
file_path: streamlit/lib/tests/streamlit/elements/markdown_test.py
imports: import streamlit
  from tests.delta_generator_test_case import DeltaGeneratorTestCase
label_desc: Use image node_id 1 for calling the StLatexAPITest obj's underlying member method code with example usage: obj.test_st_latex_with_help() without return types