src/Message.php
protected function setMessage($message)
    {
        $this->message = $this->encodeMessage($message);

        if (strlen($this->message) > $this->concatLimit) {
            $this->concat = true;
        }

        return $this;
    }
protected function setMessage($message)
    {
        $this->message = $this->encodeMessage($message);

        if (strlen($this->message) > $this->concatLimit) {
            $this->concat = true;
        }

        return $this;
    }
Set the message.

@param  string $message

@return $this