async fn create_cache_parameter_group(
        &self,
        input: CreateCacheParameterGroupMessage,
    ) -> Result<CreateCacheParameterGroupResult, RusotoError<CreateCacheParameterGroupError>> {
        let mut request = SignedRequest::new("POST", "elasticache", &self.region, "/");
        let params = self.new_params("CreateCacheParameterGroup");
        let mut params = params;
        CreateCacheParameterGroupMessageSerializer::serialize(&mut params, "", &input);
        request.set_payload(Some(serde_urlencoded::to_string(&params).unwrap()));
        request.set_content_type("application/x-www-form-urlencoded".to_owned());

        let response = self
            .sign_and_dispatch(request, CreateCacheParameterGroupError::from_response)
            .await?;

        let mut response = response;
        let result = xml_util::parse_response(&mut response, |actual_tag_name, stack| {
            xml_util::start_element(actual_tag_name, stack)?;
            let result = CreateCacheParameterGroupResultDeserializer::deserialize(
                "CreateCacheParameterGroupResult",
                stack,
            )?;
            skip_tree(stack);
            xml_util::end_element(actual_tag_name, stack)?;
            Ok(result)
        })
        .await?;

        drop(response); // parse non-payload
        Ok(result)
    }
<p><p>Creates a new Amazon ElastiCache cache parameter group. An ElastiCache cache parameter group is a collection of parameters and their values that are applied to all of the nodes in any cluster or replication group using the CacheParameterGroup.</p> <p>A newly created CacheParameterGroup is an exact duplicate of the default parameter group for the CacheParameterGroupFamily. To customize the newly created CacheParameterGroup you can change the values of specific parameters. For more information, see:</p> <ul> <li> <p> <a href="https://docs.aws.amazon.com/AmazonElastiCache/latest/APIReference/API_ModifyCacheParameterGroup.html">ModifyCacheParameterGroup</a> in the ElastiCache API Reference.</p> </li> <li> <p> <a href="https://docs.aws.amazon.com/AmazonElastiCache/latest/red-ug/ParameterGroups.html">Parameters and Parameter Groups</a> in the ElastiCache User Guide.</p> </li> </ul></p>
rusoto/services/elasticache/src/generated.rs