amber-laravel/app/Repositories/LLM/BaseMessage.php

<?php

namespace App\Repositories\LLM;

class BaseMessage
{
    public string $content;

    public bool $processing = false;

    public function __construct(string $content)
    {
        $this->content = $content;
    }

    public function append(string $content): void
    {
        $this->content .= $content;
    }

    public function clear(): void
    {
        $this->content = '';
    }

    public function __toString(): string
    {
        return $this->content;
    }
}