1) Strings, bytes and repeated fields of any type map to callback functions by default.
2) If there is a special option *(nanopb).max_size* specified in the .proto file, string maps to null-terminated char array and bytes map to a structure containing a char array and a size field.
3) If *(nanopb).type* is set to *FT_INLINE* and *(nanopb).max_size* is also set, then bytes map to an inline byte array of fixed size.
-3) If there is a special option *(nanopb).max_count* specified on a repeated field, it maps to an array of whatever type is being repeated. Another field will be created for the actual number of entries stored.
+4) If there is a special option *(nanopb).max_count* specified on a repeated field, it maps to an array of whatever type is being repeated. Another field will be created for the actual number of entries stored.
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field in .proto autogenerated in .h