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string len 1 255
byte -128 127 len 1 3
sInt -32768 32767 len 1 5
int -2147483648 2147483647 len 1 10
int64 -9223372036854775808 9223372036854775807 len 1 20
IP 0.0.0.0 255.255.255.255 len 15
float -9999.999 9999.999 len 8 
double -99999999.999999 99999999.999999 len 15