v5.18.0/.changelog/4066.txt

```release-note:new-resource
`google_api_gateway_api`
```
```release-note:new-resource
`google_api_gateway_api_config`
```
```release-note:new-resource
`google_api_gateway_gateway`
```
```release-note:new-resource
`google_api_gateway_api_iam_binding`
```
```release-note:new-resource
`google_api_gateway_api_iam_member`
```
```release-note:new-resource
`google_api_gateway_api_iam_policy`
```
```release-note:new-resource
`google_api_gateway_api_config_iam_binding`
```
```release-note:new-resource
`google_api_gateway_api_config_iam_member`
```
```release-note:new-resource
`google_api_gateway_api_config_iam_policy`
```
```release-note:new-resource
`google_api_gateway_gateway_iam_binding`
```
```release-note:new-resource
`google_api_gateway_gateway_iam_member`
```
```release-note:new-resource
`google_api_gateway_gateway_iam_policy`
```