src/Translatable/Translatable.php
public function fill(array $attributes)
    {
        foreach ($attributes as $key => $values) {
            if ($this->isKeyALocale($key)) {
                $this->getTranslationOrNew($key)->fill($values);
                unset($attributes[$key]);
            } elseif ($this->isTranslationAttribute($key)) {
                $this->getTranslationOrNew($this->locale())->fill([$key => $values]);
                unset($attributes[$key]);
            }
        }

        return parent::fill($attributes);
    }
public function fill(array $attributes)
    {
        foreach ($attributes as $key => $values) {
            if ($this->isKeyALocale($key)) {
                $this->getTranslationOrNew($key)->fill($values);
                unset($attributes[$key]);
            } elseif ($this->isTranslationAttribute($key)) {
                $this->getTranslationOrNew($this->locale())->fill([$key => $values]);
                unset($attributes[$key]);
            }
        }

        return parent::fill($attributes);
    }
@param array $attributes

@throws \Illuminate\Database\Eloquent\MassAssignmentException

@return $this