async fn create_return_shipping_label(
        &self,
        input: CreateReturnShippingLabelRequest,
    ) -> Result<CreateReturnShippingLabelResult, RusotoError<CreateReturnShippingLabelError>> {
        let mut request = self.new_signed_request("POST", "/");
        request.add_header(
            "x-amz-target",
            "AWSIESnowballJobManagementService.CreateReturnShippingLabel",
        );
        let encoded = serde_json::to_string(&input).unwrap();
        request.set_payload(Some(encoded));

        let response = self
            .sign_and_dispatch(request, CreateReturnShippingLabelError::from_response)
            .await?;
        let mut response = response;
        let response = response.buffer().await.map_err(RusotoError::HttpDispatch)?;
        proto::json::ResponsePayload::new(&response)
            .deserialize::<CreateReturnShippingLabelResult, _>()
    }
<p>Creates a shipping label that will be used to return the Snow device to AWS.</p>
rusoto/services/snowball/src/generated.rs