Bedrock > Structures > AutomatedReasoningPolicyUpdateRuleMutation AutomatedReasoningPolicyUpdateRuleMutation¶ Structure Class¶ AutomatedReasoningPolicyUpdateRuleMutation dataclass ¶ A mutation operation that modifies an existing rule in the policy definition during the build process. Attributes¶ rule instance-attribute ¶ rule: AutomatedReasoningPolicyDefinitionRule The updated rule definition containing the modified formal logical expression and any changed metadata for the existing rule.