Bedrock Runtime > Structures > GuardrailChecksMessage GuardrailChecksMessage¶ Structure Class¶ GuardrailChecksMessage dataclass ¶ A message to evaluate against guardrail checks, containing a role and content blocks. Attributes¶ content instance-attribute ¶ content: list[GuardrailChecksContentBlock] The content blocks for the message. role instance-attribute ¶ role: str The role of the message sender.