async fn describe_access(
        &self,
        input: DescribeAccessRequest,
    ) -> Result<DescribeAccessResponse, RusotoError<DescribeAccessError>> {
        let mut request = self.new_signed_request("POST", "/");
        request.add_header("x-amz-target", "TransferService.DescribeAccess");
        let encoded = serde_json::to_string(&input).unwrap();
        request.set_payload(Some(encoded));

        let response = self
            .sign_and_dispatch(request, DescribeAccessError::from_response)
            .await?;
        let mut response = response;
        let response = response.buffer().await.map_err(RusotoError::HttpDispatch)?;
        proto::json::ResponsePayload::new(&response).deserialize::<DescribeAccessResponse, _>()
    }
<p>Describes the access that is assigned to the specific file transfer protocol-enabled server, as identified by its <code>ServerId</code> property and its <code>ExternalID</code>.</p> <p>The response from this call returns the properties of the access that is associated with the <code>ServerId</code> value that was specified.</p>
rusoto/services/transfer/src/generated.rs