AiOpenAIChunkChoice

One choice of a streaming completion, carrying the part this chunk adds.

Name	Type	Description	Notes
index	BigDecimal	The zero-based position of the choice. This service emits a single choice, so always 0.	[required]
delta	AiOpenAIChoiceDelta	What this chunk adds to the choice.	[required]
finish_reason	AiOpenAIFinishReason	Why the completion stopped, or null while it is still streaming.	[required] [enum: stop, length, tool_calls, content_filter, null] [nullable]