Get storage policy

curl -X GET https://api.box.com/2.0/storage_policies/34342 \
     -H 'Authorization: Bearer <ACCESS_TOKEN>'

BoxStoragePolicy policy = await client.StoragePoliciesManager.GetStoragePolicyAsync(policyId: "6");

BoxStoragePolicy storagePolicy = new BoxStoragePolicy(api, id);
BoxStoragePolicy.Info storagePolicyInfo = storagePolicy.getInfo();

storage_policy = client.storage_policy(policy_id='12345').get()
print('Storage Policy ID is {0} and name is {1}'.format(storage_policy.id, storage_policy.name))

client.storagePolicies.get('6')
    .then(storagePolicy => {
        /* storagePolicy -> {
            type: 'storage_policy', 
            id: '6',
            name: 'Tokyo & Singapore' }
        */
    });

client.storagePolicies.get(storagePolicyId: "22222") { (result: Result<StoragePolicy, BoxSDKError>) in
    guard case let .success(policy) = result else {
        print("Error getting storage policy")
        return
    }
    print("Policy ID is \(policy.id)")
}