Bedrock Agentcore > Structures > HarnessContentBlockDeltaEvent HarnessContentBlockDeltaEvent¶ Structure Class¶ HarnessContentBlockDeltaEvent dataclass ¶ Event containing a delta update to a content block. Attributes¶ content_block_index instance-attribute ¶ content_block_index: int The index of the content block being updated. delta instance-attribute ¶ delta: HarnessContentBlockDelta The delta payload.