from core.tools.provider.builtin_tool_provider import BuiltinToolProviderController from core.tools.errors import ToolProviderCredentialValidationError from core.tools.provider.builtin.chart.tools.line import LinearChartTool import matplotlib.pyplot as plt # use a business theme plt.style.use('seaborn-v0_8-darkgrid') class ChartProvider(BuiltinToolProviderController): def _validate_credentials(self, credentials: dict) -> None: try: LinearChartTool().fork_tool_runtime( meta={ "credentials": credentials, } ).invoke( user_id='', tool_paramters={ "data": "1,3,5,7,9,2,4,6,8,10", }, ) except Exception as e: raise ToolProviderCredentialValidationError(str(e))