Enum AssistantContent 

pub enum AssistantContent {
    Text(Text),
    ToolCall(ToolCall),
    Reasoning(Reasoning),
    Image(Image),
}

Describes responses from a provider which is either text or a tool call.

Tagged with "type", exactly like UserContent. The tag is required on deserialize — there is no fallback to the tagless shape 0.41 serialized, so a bare {"text": …} block does not load; see MIGRATING for the tag-insertion recipe.

Variants

Text(Text)

Plain assistant text.

ToolCall(ToolCall)

Tool call requested by the assistant.

Reasoning(Reasoning)

Structured reasoning emitted by the assistant.

Image(Image)

Image content emitted by the assistant.

Implementations

impl AssistantContent

pub fn text(text: impl Into<String>) -> AssistantContent

Helper constructor to make creating assistant text content easier.

pub fn image_base64( data: impl Into<String>, media_type: Option<ImageMediaType>, detail: Option<ImageDetail>, ) -> AssistantContent

Helper constructor to make creating assistant image content easier.

pub fn tool_call( id: impl Into<String>, name: impl Into<String>, arguments: Value, ) -> AssistantContent

Helper constructor to make creating assistant tool call content easier.

id is the provider-issued identifier when one exists; an empty id records no provider id and mints the correlation handle.

pub fn tool_call_with_call_id( id: impl Into<String>, call_id: String, name: impl Into<String>, arguments: Value, ) -> AssistantContent

Dual-identifier variant (OpenAI Responses): id is the output-item handle (fc_…), call_id the correlator (call_…).

pub fn reasoning(reasoning: impl AsRef<str>) -> AssistantContent

Trait Implementations

impl Clone for AssistantContent

fn clone(&self) -> AssistantContent

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for AssistantContent

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for AssistantContent

fn deserialize<__D>( __deserializer: __D, ) -> Result<AssistantContent, <__D as Deserializer<'de>>::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl From<AssistantContent> for Message

fn from(content: AssistantContent) -> Message

Converts to this type from the input type.

impl From<AssistantContent> for AssistantContent

fn from(value: AssistantContent) -> AssistantContent

Converts to this type from the input type.

impl From<AssistantContent> for AssistantContent

fn from(value: AssistantContent) -> AssistantContent

Converts to this type from the input type.

impl From<String> for AssistantContent

fn from(text: String) -> AssistantContent

Converts to this type from the input type.

impl PartialEq for AssistantContent

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

Equality operator ==.

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

Inequality operator !=.

impl Serialize for AssistantContent

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

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for AssistantContent

impl TryFrom<AssistantContent> for Part

type Error = MessageError

The type returned in the event of a conversion error.

fn try_from( content: AssistantContent, ) -> Result<Part, <Part as TryFrom<AssistantContent>>::Error>

Performs the conversion.

impl TryFrom<AssistantContent> for Content

type Error = MessageError

The type returned in the event of a conversion error.

fn try_from( content: AssistantContent, ) -> Result<Content, <Content as TryFrom<AssistantContent>>::Error>

Performs the conversion.

impl TryFrom<Content> for AssistantContent

type Error = MessageError

The type returned in the event of a conversion error.

fn try_from( content: Content, ) -> Result<AssistantContent, <AssistantContent as TryFrom<Content>>::Error>

Performs the conversion.