( ! ) Fatal error: Class 'Twilio\InstanceResource' not found in C:\wamp64\www\pws_product_NS\Twilio\Rest\Wireless\V1\RatePlanInstance.php on line 46
Call Stack
#	Time	Memory	Function	Location
1	0.0000	383088	{main}( )	...\RatePlanInstance.php:0