Enum StreamEvent 

pub enum StreamEvent {
    Token(String),
    Reasoning(String),
    Usage(Usage),
    Status(String),
    ToolCall {
        id: String,
        reasoning: Option<String>,
        assistant_content: Option<String>,
        name: String,
        arguments: String,
        result: String,
    },
    Done,
    Error(String),
}

Variants

Token(String)

A chunk of the visible answer.

Reasoning(String)

A chunk of the model’s reasoning/thinking (shown separately).

Usage(Usage)

Exact token counts (arrives near end when usage accounting is on).

Status(String)

A tool is about to run (e.g. “Searching the web…”), shown next to the thinking spinner while the model waits on the result.

ToolCall

A tool finished: shown (and persisted) as its own transcript block.

Fields

id: String

The provider’s stable call id, retained for exact replay. It is intentionally omitted by the remote host wire mirror.

reasoning: Option<String>

Reasoning content that accompanied the assistant tool-call batch, when the provider requires it on the next request.

assistant_content: Option<String>

Any visible assistant content sent alongside the tool-call batch.

name: String

arguments: String

result: String

Done

Error(String)

Trait Implementations

impl Clone for StreamEvent

fn clone(&self) -> StreamEvent

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for StreamEvent

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

Formats the value using the given formatter.

impl From<StreamEvent> for WireStreamEvent

fn from(ev: StreamEvent) -> Self

Converts to this type from the input type.