waitUntilFunctionExists
suspend fun LambdaClient.waitUntilFunctionExists(request: GetFunctionRequest, retryStrategy: <Error class: unknown class>? = null): <Error class: unknown class><GetFunctionResponse>
suspend fun LambdaClient.waitUntilFunctionExists(block: GetFunctionRequest.Builder.() -> Unit): <Error class: unknown class><GetFunctionResponse>