Function lambda_http::run 
source · pub async fn run<'a, R, S, E>(handler: S) -> Result<(), Error>where
    S: Service<Request, Response = R, Error = E>,
    S::Future: Send + 'a,
    R: IntoResponse,
    E: Debug + Display,Expand description
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].