async fn describe_objects(
        &self,
        input: DescribeObjectsInput,
    ) -> Result<DescribeObjectsOutput, RusotoError<DescribeObjectsError>> {
        let mut request = self.new_signed_request("POST", "/");
        request.add_header("x-amz-target", "DataPipeline.DescribeObjects");
        let encoded = serde_json::to_string(&input).unwrap();
        request.set_payload(Some(encoded));

        let response = self
            .sign_and_dispatch(request, DescribeObjectsError::from_response)
            .await?;
        let mut response = response;
        let response = response.buffer().await.map_err(RusotoError::HttpDispatch)?;
        proto::json::ResponsePayload::new(&response).deserialize::<DescribeObjectsOutput, _>()
    }
<p>Gets the object definitions for a set of objects associated with the pipeline. Object definitions are composed of a set of fields that define the properties of the object.</p>
rusoto/services/datapipeline/src/generated.rs