JavaScript representation of fields with 64 bit integral types (int64, uint64,
sint64, fixed64, sfixed64).
This is a subset of google.protobuf.FieldOptions.JSType, which defines JS_NORMAL,
JS_STRING, and JS_NUMBER. Protobuf-ES uses BigInt by default, but will use
String if [jstype = JS_STRING] is specified.
JavaScript representation of fields with 64 bit integral types (int64, uint64, sint64, fixed64, sfixed64).
This is a subset of google.protobuf.FieldOptions.JSType, which defines JS_NORMAL, JS_STRING, and JS_NUMBER. Protobuf-ES uses BigInt by default, but will use String if
[jstype = JS_STRING]
is specified.