Bedrock > Structures > LambdaGraderConfig LambdaGraderConfig¶ Structure Class¶ LambdaGraderConfig dataclass ¶ Configuration for using an AWS Lambda function to grade model responses during reinforcement fine-tuning training. Attributes¶ lambda_arn instance-attribute ¶ lambda_arn: str ARN of the AWS Lambda function that will evaluate model responses and return reward scores for RFT training.