async fn create_firewall_rule_group(
        &self,
        input: CreateFirewallRuleGroupRequest,
    ) -> Result<CreateFirewallRuleGroupResponse, RusotoError<CreateFirewallRuleGroupError>> {
        let mut request = self.new_signed_request("POST", "/");
        request.add_header("x-amz-target", "Route53Resolver.CreateFirewallRuleGroup");
        let encoded = serde_json::to_string(&input).unwrap();
        request.set_payload(Some(encoded));

        let response = self
            .sign_and_dispatch(request, CreateFirewallRuleGroupError::from_response)
            .await?;
        let mut response = response;
        let response = response.buffer().await.map_err(RusotoError::HttpDispatch)?;
        proto::json::ResponsePayload::new(&response)
            .deserialize::<CreateFirewallRuleGroupResponse, _>()
    }
<p>Creates an empty DNS Firewall rule group for filtering DNS network traffic in a VPC. You can add rules to the new rule group by calling <a>CreateFirewallRule</a>. </p>
rusoto/services/route53resolver/src/generated.rs