'integer', 'stock_before' => 'integer', 'retail_stock_before' => 'integer', 'stock_after' => 'integer', 'retail_stock_after' => 'integer', ]; } public function productVariant(): BelongsTo { return $this->belongsTo(ProductVariant::class); } public function user(): BelongsTo { return $this->belongsTo(User::class); } }