Function fetch_motor 

pub fn fetch_motor<T: Transport>(
    client: &Client<T>,
    manufacturer: &str,
    designation: &str,
    now_s: u64,
) -> Result<(MotorPage, Fetched), MotorFinderError>

Fetches one motor’s page through client, as fetch_meta does: the motor, and when its page was built. A page for another motor than the one asked for is refused, and never cached.

Errors

MotorFinderError::Request for a bad manufacturer or designation (Endpoint::motor); as fetch_meta otherwise. An unknown motor is the site’s “not found” page, which Http reports as NetError::Transport naming status 404.