Struct ChatCompletionResponseMessage 

pub struct ChatCompletionResponseMessage {
    pub content: Option<ChatCompletionMessageContent>,
    pub refusal: Option<String>,
    pub tool_calls: Option<Vec<ChatCompletionMessageToolCall>>,
    pub role: Role,
    pub function_call: Option<FunctionCall>,
    pub audio: Option<ChatCompletionResponseMessageAudio>,
    pub reasoning_content: Option<String>,
}

Chat completion response message with multimodal content and reasoning.

Extends upstream ChatCompletionResponseMessage with:

• content: Option<ChatCompletionMessageContent> (multimodal) instead of Option<String>
• reasoning_content: model reasoning output (DeepSeek-R1, QwQ)

Fields

content: Option<ChatCompletionMessageContent>

Always serialized (as null when None) so clients can rely on the content key being present alongside reasoning_content or tool_calls. Matches the upstream OpenAI API shape (DGH-651).

refusal: Option<String>

Always serialized (as null when None): the spec marks refusal as required-and-nullable, and OpenAI emits "refusal": null on every non-refusal response.

tool_calls: Option<Vec<ChatCompletionMessageToolCall>>

role: Role

function_call: Option<FunctionCall>

👎Deprecated

audio: Option<ChatCompletionResponseMessageAudio>

reasoning_content: Option<String>

Reasoning content produced by the model (DeepSeek-R1, QwQ). Accepts either reasoning_content (DeepSeek / SGLang / TRT-LLM canonical) or reasoning (vLLM native / OpenRouter / OpenAI GPT-OSS) on input via the alias; output-side key selection is handled at the HTTP boundary by ai-dynamo/dynamo#11464’s RoutedReasoning wrapper. Not part of the OpenAI spec, so it is omitted entirely when absent.

Trait Implementations

impl Clone for ChatCompletionResponseMessage

fn clone(&self) -> ChatCompletionResponseMessage

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for ChatCompletionResponseMessage

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for ChatCompletionResponseMessage

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl PartialEq for ChatCompletionResponseMessage

fn eq(&self, other: &ChatCompletionResponseMessage) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl Serialize for ChatCompletionResponseMessage

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for ChatCompletionResponseMessage