The expression return mattvb91\TronTrx\... self::AVAILABLE_CHARS) could return the type null which is incompatible with the type-hinted return string. Consider adding an additional type-check to rule them out.
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public static function decode(string $addr, int $length = 58): string
The expression return mattvb91\TronTrx\... self::AVAILABLE_CHARS) could return the type null which is incompatible with the type-hinted return string. Consider adding an additional type-check to rule them out.