set method
the long value (number from -9223372036854775808 to 9223372036854775807)
Implementation
void set(int v) {
if(v > 9223372036854775807 || v < -9223372036854775808) throw this._gen.error("Byte must be between -9223372036854775808 and 9223372036854775807");
this._number = v;
}