class_docstr: Test st.help.
class_docstr_tok: ["Test","st.help","."]
docstr: When st.help is called with no arguments, show Streamlit docs.
docstr_tok: ["When","st.help","is","called","with","no","arguments",",","show","Streamlit","docs","."]
code: def test_no_arg(self):
      """When st.help is called with no arguments, show Streamlit docs."""
  
      with patch_varname_getter():
          st.help()
  
      ds = self.get_delta_from_queue().new_element.doc_string
      self.assertEqual("", ds.name)
      self.assertEqual("streamlit", ds.value)
      self.assertEqual("module", ds.type)
      self.assertTrue(ds.doc_string.startswith("Streamlit."))
  
imports: import inspect
  import sys
  import unittest
  from unittest.mock import patch
  import numpy
  import pytest
  import streamlit
  from streamlit.elements.doc_string import _get_variable_name_from_code_str
  from tests.delta_generator_test_case import DeltaGeneratorTestCase
label_desc: Use image node_id 1 for calling the StHelpTest obj's underlying member method code with example usage: obj.test_no_arg() without return types