AxAIAnthropicContentBlockDeltaEvent
Defined in: https://github.com/ax-llm/ax/blob/3306475085414d36aee4411ad2466e08e53bef8a/src/ax/ai/anthropic/types.ts#L359
Defined in: https://github.com/ax-llm/ax/blob/3306475085414d36aee4411ad2466e08e53bef8a/src/ax/ai/anthropic/types.ts#L359