AxAIAnthropicContentBlockDeltaEvent
Defined in: https://github.com/ax-llm/ax/blob/31f293d0ebe925f398e3310055e4d2b6ef3b1b2e/src/ax/ai/anthropic/types.ts#L359
Defined in: https://github.com/ax-llm/ax/blob/31f293d0ebe925f398e3310055e4d2b6ef3b1b2e/src/ax/ai/anthropic/types.ts#L359