AppSync provides API actions for creating and interacting with data sources using GraphQL from your application.
The resolved configuration of AppSyncClient class. This is resolved and normalized from the constructor configuration interface.
Destroy underlying resources, like sockets. It's usually not necessary to do this. However in Node.js, it's best to explicitly shut down the client's agent when it is no longer needed. Otherwise, sockets might stay open for quite a long time before the server terminates them.