Function lambda_http::run

pub async fn run<'a, R, S>(handler: S) -> Result<(), Error> where
    S: Service<Request, Response = R, Error = Error>,
    S::Future: 'a,
    R: IntoResponse, 

Starts the Lambda Rust runtime and begins polling for events on the Lambda Runtime APIs.

This takes care of transforming the LambdaEvent into a Request and then converting the result into a [LambdaResponse].