Final Class Yiisoft\Yii\Bulma\Panel

                public function attributes(array $values): self
{
    $new = clone $this;
    $new->attributes = $values;
    return $new;
}

            

                public function autoIdPrefix(string $value): self
{
    $new = clone $this;
    $new->autoIdPrefix = $value;
    return $new;
}

            

                public function blockClass(string $value): self
{
    $new = clone $this;
    $new->blockClass = $value;
    return $new;
}

            

                public function color(string $value): self
{
    if (!in_array($value, self::COLOR_ALL, true)) {
        $values = implode(' ', self::COLOR_ALL);
        throw new InvalidArgumentException("Invalid color. Valid values are: \"$values\".");
    }
    $new = clone $this;
    $new->color = $value;
    return $new;
}

            

                public function cssClass(string $value): self
{
    $new = clone $this;
    $new->panelClass = $value;
    return $new;
}

            

                public function heading(string $value): self
{
    $new = clone $this;
    $new->heading = $value;
    return $new;
}

            

                public function headingAttributes(array $values): self
{
    $new = clone $this;
    $new->headingAttributes = $values;
    return $new;
}

            

                public function headingClass(string $value): self
{
    $new = clone $this;
    $new->headingClass = $value;
    return $new;
}

            

                public function iconClass(string $value): self
{
    $new = clone $this;
    $new->iconClass = $value;
    return $new;
}

            

                public function id(string $value): self
{
    $new = clone $this;
    $new->attributes['id'] = $value;
    return $new;
}

            

                public function isActiveClass(string $value): self
{
    $new = clone $this;
    $new->isActiveClass = $value;
    return $new;
}

            

                public function render(): string
{
    $attributes = $this->attributes;
    /** @var string */
    $attributes['id'] ??= (Html::generateId($this->autoIdPrefix) . '-panel');
    $id = $attributes['id'];
    /** @var string */
    $tag = $attributes['tag'] ?? 'nav';
    Html::addCssClass($attributes, $this->panelClass);
    if ($this->color !== '') {
        Html::addCssClass($attributes, $this->color);
    }
    return strtr($this->template, [
        '{panelBegin}' => Html::openTag($tag, $attributes) . PHP_EOL,
        '{panelHeading}' => $this->renderHeading(),
        '{panelTabs}' => $this->renderTabs($id),
        '{panelItems}' => implode('', $this->tabItems),
        '{panelEnd}' => Html::closeTag($tag),
    ]);
}

            

                public function tabClass(string $value): self
{
    $new = clone $this;
    $new->tabClass = $value;
    return $new;
}

            

                public function tabs(array $value): self
{
    $new = clone $this;
    $new->tabs = $value;
    return $new;
}

            

                public function tabsAttributes(array $values): self
{
    $new = clone $this;
    $new->tabsAttributes = $values;
    return $new;
}

            

                public function template(string $value): self
{
    $new = clone $this;
    $new->template = $value;
    return $new;
}