Function streaming_tool 

pub async fn streaming_tool<M, F>(
    model: M,
    configure: F,
) -> Result<ScenarioReport, ScenarioError>
where
    M: CompletionModel + 'static,
    F: FnOnce(AgentBuilder<M>) -> AgentBuilder<M>,

Available on crate feature test-utils only.

Runs a tool through Rig’s multi-turn streaming agent driver.