LongRunningClient (gax 2.16.0 API)

```
public interface LongRunningClient
```
Implementation-agnostic interface for managing long-running operations.

All Methods Instance Methods Abstract Methods
Modifier and Type	Method and Description
`UnaryCallable<String,Void>`	`cancelOperationCallable()` Returns a `UnaryCallable` which can issue calls to cancel an operation.
`UnaryCallable<String,Void>`	`deleteOperationCallable()` Returns a `UnaryCallable` which can issue calls to delete an operation.
`UnaryCallable<String,OperationSnapshot>`	`getOperationCallable()` Returns a `UnaryCallable` which can issue calls to get the latest state of an operation.

Interface LongRunningClient