protected static function unpackPayload($self, string $data): void
    {
        [
            $self->contentData,
            $self->paddingData
        ] = array_values(
            unpack("a{$self->contentLength}contentData/a{$self->paddingLength}paddingData", $data)
        );
    }
protected static function unpackPayload($self, string $data): void
    {
        [
            $self->contentData,
            $self->paddingData
        ] = array_values(
            unpack("a{$self->contentLength}contentData/a{$self->paddingLength}paddingData", $data)
        );
    }
protected static function unpackPayload ( $ self , string $ data ) : void { [ $ self -> contentData , $ self -> paddingData ] = array_values ( unpack ( "a{$self->contentLength}contentData/a{$self->paddingLength}paddingData" , $ data ) ) ; }
Method to unpack the payload for the record.

NB: Default implementation will be always called

@param static $self Instance of current frame
@param string $data Binary data
Method to unpack the payload for the record .