class_docstr: Unit tests for the base LLM class
code: def test_is_python_code(self):
      code = "python print('Hello World')"
      assert LLM()._is_python_code(code) is False
      code = "py print('Hello World')"
      assert LLM()._is_python_code(code) is False
      code = "`print('Hello World')`"
      assert LLM()._is_python_code(code) is False
      code = "print('Hello World')"
      assert LLM()._is_python_code(code) is True
      code = "1 +"
      assert LLM()._is_python_code(code) is False
      code = "1 + 1"
      assert LLM()._is_python_code(code) is True
  
file_path: pandas-ai/tests/llms/test_base_llm.py
imports: import pytest
  from pandasai.exceptions import APIKeyNotFoundError
  from pandasai.llm import LLM
label_desc: Use image node_id 4 for calling the TestBaseLLM obj's underlying member method code with example usage: obj.test_is_python_code() without return types