public Optional<ExactDeviceRequest> exactly() {
        return Optional.ofNullable(this.exactly);
    }
@return Exactly specifies the details for a single request that must be met exactly for the request to be satisfied.

One of Exactly or FirstAvailable must be set.
sdk/java/src/main/java/com/pulumi/kubernetes/resource/v1beta2/outputs/DeviceRequest.java