Compilation fails with:
make[3]: Entering directory `/home/chandni/src/GIT/gnome/folks/backends/key-file'
  VALAC  key_file_la_vala.stamp
kf-persona-store.vala:453.51-453.63: error: Argument 1: Cannot convert from `string' to `uint8[]'
          yield this.file.replace_contents_async (key_file_data,
                                                  ^^^^^^^^^^^^^
Compilation failed: 1 error(s), 0 warning(s)


I see that glib's vapi defines replace_contents_async as :

public async bool replace_contents_async ([CCode (array_length_cname = "length", array_length_pos = 1.5, array_length_type = "gsize")] uint8[] contents, string? etag, bool make_backup, GLib.FileCreateFlags flags, GLib.Cancellable? cancellable = null, out string new_etag) throws GLib.Error;

though the function's definition describes "contents" as const char *

So, does that mean this is unresolvable until vapi is corrected or can this be solved at folks level?