Metered class

Provides methods to set metered key.

The Metered type exposes the following members:

Constructor	Description
init	Initializes a new instance of this class.

Method	Description
set_metered_key	Sets metered public and private key. If you purchase metered license, when start application, this API should be called, normally, this is enough. However, if always fail to upload consumption data and exceed 24 hours, the license will be set to evaluation status, to avoid such case, you should regularly check the license status, if it is evaluation status, call this API again.
get_consumption_quantity	Gets consumption file size
get_consumption_credit	Gets consumption credit
is_metered_licensed	Check whether metered is licensed

In this example, an attempt will be made to set metered public and private key