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  1. or download this
    use open ':std', ':encoding(UTF-8)';
  2. or download this
    use open ':std', ':encoding(UTF-8)';
  3. or download this
    use utf8;
use encoding ':std', ':encoding(UTF-8)';
...
   my $got = decode_json($json)->{text};
   printf("U+%v04X %s\n", $got, $got);
}