double: 123456789.12345
float: 12345.123
int64: -123456789123456789
uint64: 123456789123456789
int32: -123456789
fixed64: 123456789123456789
fixed32: 123456789
bool: 1
string: "foo"
bytes: "bar"
uint32: 123456789
sfixed32: -123456789
sfixed64: -123456789123456789
sint32: -123456789
sint64: -123456789123456789