buckets/app/Models/Scenario.php

<?php

namespace App\Models;

use Database\Factories\ScenarioFactory;
use Illuminate\Database\Eloquent\Collection;
use Illuminate\Database\Eloquent\Factories\HasFactory;
use Illuminate\Database\Eloquent\Model;
use Illuminate\Database\Eloquent\Relations\HasMany;

/**
 * @property int $id
 * @property Collection<Bucket> $buckets
 * @method static create(array $data)
 */
class Scenario extends Model
{
    /** @use HasFactory<ScenarioFactory> */
    use HasFactory;

    protected $fillable = [
        'name',
        'description',
    ];

    public function buckets(): HasMany
    {
        return $this->hasMany(Bucket::class);
    }

    public function streams(): HasMany
    {
        return $this->hasMany(Stream::class);
    }

    public function inflows(): HasMany
    {
        return $this->hasMany(Inflow::class);
    }

    public function outflows(): HasMany
    {
        return $this->hasMany(Outflow::class);
    }
}