Property	Description	Type	Default
`agent`	`agent` parameter is required when using the `onRequest` method in an agent generated by `XAgent`.	`XAgent`	-
`defaultMessages`	default messages	`{ status, message }[]`	-
`parser`	Convert AgentMessage to ParsedMessage for consumption. If not set, AgentMessage will be consumed directly. Supports converting one AgentMessage to multiple ParsedMessages	`(message: AgentMessage) => BubbleMessage \| BubbleMessage[]`	-
`requestFallback`	Fallback when request fails, not provided will not be displayed	`AgentMessage \| () => AgentMessage`	-
`requestPlaceholder`	Show the placeholder information when requesting, not provided will not be displayed	`AgentMessage \| () => AgentMessage`	-
`transformMessage`	The `messages` can be converted when updating data, and will also be updated to `messages`	`(info: {originMessage?: AgentMessage,chunk: Output,chunks: Output[],status: MessageStatus}) => AgentMessage`	-
`transformStream`	Optional transform function for processing stream data	`XStreamOptions<Output>['transformStream']`	-
`resolveAbortController`	`AbortController`,used to control the stream state	`(abortController: AbortController) => void`	-

Property	Description	Type	Default
`messages`	Current managed messages content	`{id: string \| number; message: AgentMessage; status: MessageStatus;}[]`	-
`parsedMessages`	Parsed messages by `parser` api	`{id: string \| number; message: ParsedMessage; status: MessageStatus;}[]`	-
`onRequest`	Create a message and trigger a request, If there is no data with `key` as `message`, the entire data will be processed as a message	`(requestParams: AgentMessage \| RequestParams) => void`	-
`setMessages`	Modify messages directly without triggering requests	`(messages: {id: string \| number; message: AgentMessage; status: MessageStatus;}[]) => void`	-

Property	Description	Type	Default
`message`	Current message content	`AgentMessage`	-