code: def test_skill_decorator_test_code(self, llm):
      # Define skills using the decorator
      @skill
      def plot_salaries(*args, **kwargs):
          """
          Test skill A
          Args:
              arg(str)
          """
          return "SkillA Result"
  
      function_def = """
              Test skill A
              Args:
                  arg(str)
  """  # noqa: E501
  
      assert function_def in str(plot_salaries)
  
imports: from typing import Optional
  from unittest.mock import MagicMock, Mock, patch
  import uuid
  import pandas
  import pytest
  from pandasai.agent import Agent
  from pandasai.helpers.code_manager import CodeExecutionContext, CodeManager
  from pandasai.helpers.skills_manager import SkillsManager
  from pandasai.llm.fake import FakeLLM
  from pandasai.skills import skill, Skill
  from pandasai.smart_dataframe import SmartDataframe
label_desc: Use image node_id 12 for calling the TestSkills obj's underlying member method code with example usage: obj.test_skill_decorator_test_code(llm) and returns: str