AxAIAnthropicContentBlockDeltaEvent
Defined in: https://github.com/ax-llm/ax/blob/e4219a44b7581a55a40d9dd62d2c281062ff078d/src/ax/ai/anthropic/types.ts#L359
Defined in: https://github.com/ax-llm/ax/blob/e4219a44b7581a55a40d9dd62d2c281062ff078d/src/ax/ai/anthropic/types.ts#L359