// assigns user and token together to resource
 $response = $api->assignUserAndTokenToResource($resourceId, $userId, $tokenId);
 echo print_r($response, true) . "<br/>";
 echo "<br/>UNASSIGNING USER WITH ID = " . $userId . " AND TOKEN WITH ID = " . $tokenId . " TOGETHER FROM RESOURCE WITH ID = " . $resourceId . "<br/>";
 // unassigns user and token together from resource
 $response = $api->unassignUserAndTokenFromResource($resourceId, $userId, $tokenId);
 echo print_r($response, true) . "<br/>";
 echo "<br/>ASSIGNING TOKEN WITH ID = " . $tokenId . " AND USER, WHICH HAS THIS TOKEN, TOGETHER TO RESOURCE WITH ID = " . $resourceId . "<br/>";
 // assigns user and token together to resource (userId does not
 // specified, because token is already assigned to user)
 $response = $api->assignTokenWithUserToResource($resourceId, $tokenId);
 echo print_r($response, true) . "<br/>";
 echo "<br/>UNASSIGNING TOKEN WITH ID = " . $tokenId . " AND USER, WHICH HAS THIS TOKEN, TOGETHER FROM RESOURCE WITH ID = " . $resourceId . "<br/>";
 // unassigns user and token together from resource (userId does not
 // specified, because token is already assigned to user)
 $response = $api->unassignTokenWithUserFromResource($resourceId, $tokenId);
 echo print_r($response, true) . "<br/>";
 echo "<br/>DELETING A TOKEN<br/>";
 $response = $api->deleteToken($tokenId);
 echo print_r($response, true) . "<br/>";
 $tokenId = $response->response->token->id;
 echo "ID OF THE DELETED TOKEN =>>> " . $tokenId . "<br/>";
 echo "<br/>DELETING A USER<br/>";
 $response = $api->deleteUser($userId);
 echo print_r($response, true) . "<br/>";
 $userId = $response->response->user->id;
 echo "ID OF THE DELETED USER =>>> " . $userId . "<br/>";
 echo "<br/>DELETING A RESOURCE<br/>";
 $response = $api->deleteResource($resourceId);
 echo print_r($response, true) . "<br/>";
 $resourceId = $response->response->resource->id;