Can you tell me the data frame of blynk

ex. Blynk.virtualWrite(V10,10).
How 10 will be transmitted to the server. Then from server to blynk application.
int b=param.asInt();
How the hardware reads the value from the virtual pin (v11). What is the transmission frame?
thank so much! and i am sorry. My english is bad

thank. but link Hardware command description error