code: def test_variable_should_match_own_name(self):
      tests = [
          "a",
          "a_b",
          "a.b",
          "a[b]",
          "a[0]",
          "a[0].c",
          "a[0].c.foo()",
      ]
  
      for test in tests:
          for st_call in st_calls:
              # Wrap test in an st call.
              code = st_call.format(test)
  
              actual = _get_variable_name_from_code_str(code)
              self.assertEqual(actual, test)
  
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 2 for calling the GetVariableNameFromCodeStrTest obj's underlying member method code with example usage: obj.test_variable_should_match_own_name() without return types