async fn delete_cache_security_group(
        &self,
        input: DeleteCacheSecurityGroupMessage,
    ) -> Result<(), RusotoError<DeleteCacheSecurityGroupError>> {
        let mut request = SignedRequest::new("POST", "elasticache", &self.region, "/");
        let params = self.new_params("DeleteCacheSecurityGroup");
        let mut params = params;
        DeleteCacheSecurityGroupMessageSerializer::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, DeleteCacheSecurityGroupError::from_response)
            .await?;

        std::mem::drop(response);
        Ok(())
    }
<p><p>Deletes a cache security group.</p> <note> <p>You cannot delete a cache security group if it is associated with any clusters.</p> </note></p>
rusoto/services/elasticache/src/generated.rs