Function post_template_session 

pub async fn post_template_session(
    ctx: RequestCtx,
    note: AuditNote,
    __arg2: Path<String>,
    __arg3: Json<PostTemplateSessionRequest>,
) -> Result<impl IntoResponse, (StatusCode, Json<ErrorResponse>)>

POST /v2/templates/{name}/sessions — create a BOS session from a session template.