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<?php
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namespace PhpOffice\PhpSpreadsheet\Worksheet\Drawing;
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use PhpOffice\PhpSpreadsheet\IComparable;
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use PhpOffice\PhpSpreadsheet\Style\Color;
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class Shadow implements IComparable
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{
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    // Shadow alignment
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    const SHADOW_BOTTOM = 'b';
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    const SHADOW_BOTTOM_LEFT = 'bl';
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    const SHADOW_BOTTOM_RIGHT = 'br';
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    const SHADOW_CENTER = 'ctr';
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    const SHADOW_LEFT = 'l';
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    const SHADOW_TOP = 't';
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    const SHADOW_TOP_LEFT = 'tl';
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    const SHADOW_TOP_RIGHT = 'tr';
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    /**
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     * Visible.
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     */
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    private bool $visible;
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    /**
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     * Blur radius.
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     *
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     * Defaults to 6
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     */
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    private int $blurRadius;
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    /**
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     * Shadow distance.
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     *
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     * Defaults to 2
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     */
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    private int $distance;
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    /**
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     * Shadow direction (in degrees).
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     */
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    private int $direction;
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    /**
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     * Shadow alignment.
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     */
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    private string $alignment;
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    /**
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     * Color.
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     */
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    private Color $color;
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    /**
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     * Alpha.
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     */
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    private int $alpha;
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    /**
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     * Create a new Shadow.
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     */
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    public function __construct()
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    {
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        // Initialise values
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        $this->visible = false;
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        $this->blurRadius = 6;
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        $this->distance = 2;
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        $this->direction = 0;
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        $this->alignment = self::SHADOW_BOTTOM_RIGHT;
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        $this->color = new Color(Color::COLOR_BLACK);
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        $this->alpha = 50;
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    }
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    /**
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     * Get Visible.
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     */
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    public function getVisible(): bool
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    {
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        return $this->visible;
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    }
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    /**
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     * Set Visible.
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     *
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     * @return $this
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     */
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    public function setVisible(bool $visible): static
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    {
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        $this->visible = $visible;
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        return $this;
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    }
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    /**
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     * Get Blur radius.
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     */
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    public function getBlurRadius(): int
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    {
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        return $this->blurRadius;
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    }
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    /**
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     * Set Blur radius.
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     *
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     * @return $this
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     */
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    public function setBlurRadius(int $blurRadius): static
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    {
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        $this->blurRadius = $blurRadius;
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        return $this;
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    }
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    /**
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     * Get Shadow distance.
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     */
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    public function getDistance(): int
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    {
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        return $this->distance;
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    }
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    /**
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     * Set Shadow distance.
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     *
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     * @return $this
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     */
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    public function setDistance(int $distance): static
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    {
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        $this->distance = $distance;
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        return $this;
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    }
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    /**
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     * Get Shadow direction (in degrees).
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     */
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    public function getDirection(): int
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    {
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        return $this->direction;
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    }
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    /**
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     * Set Shadow direction (in degrees).
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     *
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     * @return $this
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     */
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    public function setDirection(int $direction): static
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    {
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        $this->direction = $direction;
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        return $this;
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    }
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    /**
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     * Get Shadow alignment.
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     */
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    public function getAlignment(): string
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    {
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        return $this->alignment;
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    }
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    /**
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     * Set Shadow alignment.
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     *
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     * @return $this
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     */
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    public function setAlignment(string $alignment): static
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    {
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        $this->alignment = $alignment;
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        return $this;
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    }
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    /**
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     * Get Color.
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     */
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    public function getColor(): Color
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    {
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        return $this->color;
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    }
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    /**
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     * Set Color.
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     *
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     * @return $this
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     */
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    public function setColor(Color $color): static
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    {
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        $this->color = $color;
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        return $this;
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    }
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    /**
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     * Get Alpha.
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     */
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    public function getAlpha(): int
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    {
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        return $this->alpha;
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    }
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    /**
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     * Set Alpha.
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     *
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     * @return $this
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     */
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    public function setAlpha(int $alpha): static
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    {
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        $this->alpha = $alpha;
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        return $this;
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    }
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    /**
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     * Get hash code.
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     *
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     * @return string Hash code
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     */
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    public function getHashCode(): string
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    {
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        return md5(
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            ($this->visible ? 't' : 'f')
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            . $this->blurRadius
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            . $this->distance
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            . $this->direction
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            . $this->alignment
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            . $this->color->getHashCode()
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            . $this->alpha
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            . __CLASS__
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        );
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    }
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    /**
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     * Implement PHP __clone to create a deep clone, not just a shallow copy.
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     */
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    public function __clone()
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    {
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        $vars = get_object_vars($this);
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        foreach ($vars as $key => $value) {
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            if (is_object($value)) {
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                $this->$key = clone $value;
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            } else {
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                $this->$key = $value;
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            }
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        }
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    }
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}