code: def test_if_dont_know_just_echo(self):
      tests = [
          (
              "foo()",
              "foo()",
          ),
          (
              "[x for x in range(10)]",
              "[x for x in range(10)]",
          ),
          (
              "(x for x in range(10))",
              "(x for x in range(10))",
          ),
          (
              "x for x in range(10)",
              # Python >= 3.8 has its own bug here (because of course) where the
              # column offsets are off by one in different directions, leading to parentheses
              # appearing around the generator expression. This leads to syntactically correct
              # code, though, so not so bad!
              "(x for x in range(10))",
          ),
          (
              "{x: None for x in range(10)}",
              "{x: None for x in range(10)}",
          ),
      ]
  
      for test, expected 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, expected)
  
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 6 for calling the GetVariableNameFromCodeStrTest obj's underlying member method code with example usage: obj.test_if_dont_know_just_echo() without return types