https://arnaud.le-blanc.net/php-rdkafka-doc/phpdoc/class.rdkafka-message.html The documentation states that there is a `headers()` method that returns `string(!)` In reality there is `headers` property that returns `array` (nullable?)
https://arnaud.le-blanc.net/php-rdkafka-doc/phpdoc/class.rdkafka-message.html
The documentation states that there is a
headers()method that returnsstring(!)In reality there is
headersproperty that returnsarray(nullable?)