webeweb / highcharts-bundle

API/Chart/HighchartsPlotOptions.php

<?php

/**
 * This file is part of the highcharts-bundle package.
 *
 * (c) 2017 WEBEWEB
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */

namespace WBW\Bundle\HighchartsBundle\API\Chart;

use JsonSerializable;
use WBW\Library\Core\Utility\Argument\ArrayUtility;

/**
 * Highcharts plot options.
 *
 * @author webeweb <https://github.com/webeweb/>
 * @package WBW\Bundle\HighchartsBundle\API\Chart
 * @version 5.0.14
 * @final
 */
final class HighchartsPlotOptions implements JsonSerializable {

    /**
     * Area.
     *
     * @var \WBW\Bundle\HighchartsBundle\API\Chart\PlotOptions\HighchartsArea
     */
    private $area;

    /**
     * Arearange.
     *
     * @var \WBW\Bundle\HighchartsBundle\API\Chart\PlotOptions\HighchartsArearange
     * @since 2.3.0
     */
    private $arearange;

    /**
     * Areaspline.
     *
     * @var \WBW\Bundle\HighchartsBundle\API\Chart\PlotOptions\HighchartsAreaspline
     */
    private $areaspline;

    /**
     * Areasplinerange.
     *
     * @var \WBW\Bundle\HighchartsBundle\API\Chart\PlotOptions\HighchartsAreasplinerange
     * @since 2.3.0
     */
    private $areasplinerange;

    /**
     * Bar.
     *
     * @var \WBW\Bundle\HighchartsBundle\API\Chart\PlotOptions\HighchartsBar
     */
    private $bar;

    /**
     * Boxplot.
     *
     * @var array
     * @since 3.0
     */
    private $boxplot;

    /**
     * Bubble.
     *
     * @var array
     * @since 3.0
     */
    private $bubble;

    /**
     * Column.
     *
     * @var \WBW\Bundle\HighchartsBundle\API\Chart\PlotOptions\HighchartsColumn
     */
    private $column;

    /**
     * Columnrange.
     *
     * @var array
     * @since 2.3.0
     */
    private $columnrange;

    /**
     * Errorbar.
     *
     * @var array
     * @since 3.0
     */
    private $errorbar;

    /**
     * Funnel.
     *
     * @var array
     * @since 3.0
     */
    private $funnel;

    /**
     * Gauge.
     *
     * @var array
     * @since 2.3.0
     */
    private $gauge;

    /**
     * Heatmap.
     *
     * @var array
     * @since 4.0
     */
    private $heatmap;

    /**
     * Line.
     *
     * @var \WBW\Bundle\HighchartsBundle\API\Chart\PlotOptions\HighchartsLine
     */
    private $line;

    /**
     * Pie.
     *
     * @var \WBW\Bundle\HighchartsBundle\API\Chart\PlotOptions\HighchartsPie
     */
    private $pie;

    /**
     * Polygon.
     *
     * @var array
     * @since 4.1.0
     */
    private $polygon;

    /**
     * Pyramid.
     *
     * @var array
     * @since 3.0.10
     */
    private $pyramid;

    /**
     * Scatter.
     *
     * @var \WBW\Bundle\HighchartsBundle\API\Chart\PlotOptions\HighchartsScatter
     */
    private $scatter;

    /**
     * Series.
     *
     * @var \WBW\Bundle\HighchartsBundle\API\Chart\PlotOptions\HighchartsSeries
     */
    private $series;

    /**
     * Solidgauge.
     *
     * @var array
     * @since 4.0
     */
    private $solidgauge;

    /**
     * Spline.
     *
     * @var \WBW\Bundle\HighchartsBundle\API\Chart\PlotOptions\HighchartsSpline
     */
    private $spline;

    /**
     * Treemap.
     *
     * @var array
     * @since 4.1.0
     */
    private $treemap;

    /**
     * Waterfall.
     *
     * @var array
     * @since 3.0
     */
    private $waterfall;

    /**
     * Constructor.
     *
     * @param boolean $ignoreDefaultValues Ignore the default values.
     */
    public function __construct($ignoreDefaultValues = true) {
        if (true === $ignoreDefaultValues) {
            $this->clear();
        }
    }

    /**
     * Clear.
     *
     * @return void
     */
    public function clear() {

        // Clear the area.
        if (null !== $this->area) {
            $this->area->clear();
        }

        // Clear the arearange.
        if (null !== $this->arearange) {
            $this->arearange->clear();
        }

        // Clear the areaspline.
        if (null !== $this->areaspline) {
            $this->areaspline->clear();
        }

        // Clear the areasplinerange.
        if (null !== $this->areasplinerange) {
            $this->areasplinerange->clear();
        }

        // Clear the bar.
        if (null !== $this->bar) {
            $this->bar->clear();
        }

        // Clear the boxplot.
        $this->boxplot = null;

It seems like null of type null is incompatible with the declared type array of property $boxplot.

        // Clear the bubble.
        $this->bubble = null;

It seems like null of type null is incompatible with the declared type array of property $bubble.

        // Clear the column.
        if (null !== $this->column) {
            $this->column->clear();
        }

        // Clear the columnrange.
        $this->columnrange = null;

It seems like null of type null is incompatible with the declared type array of property $columnrange.

        // Clear the errorbar.
        $this->errorbar = null;

It seems like null of type null is incompatible with the declared type array of property $errorbar.

        // Clear the funnel.
        $this->funnel = null;

It seems like null of type null is incompatible with the declared type array of property $funnel.

        // Clear the gauge.
        $this->gauge = null;

It seems like null of type null is incompatible with the declared type array of property $gauge.

        // Clear the heatmap.
        $this->heatmap = null;

It seems like null of type null is incompatible with the declared type array of property $heatmap.

        // Clear the line.
        if (null !== $this->line) {
            $this->line->clear();
        }

        // Clear the pie.
        if (null !== $this->pie) {
            $this->pie->clear();
        }

        // Clear the polygon.
        $this->polygon = null;

It seems like null of type null is incompatible with the declared type array of property $polygon.

        // Clear the pyramid.
        $this->pyramid = null;

It seems like null of type null is incompatible with the declared type array of property $pyramid.

        // Clear the scatter.
        if (null !== $this->scatter) {
            $this->scatter->clear();
        }

        // Clear the series.
        if (null !== $this->series) {
            $this->series->clear();
        }

        // Clear the solidgauge.
        $this->solidgauge = null;

It seems like null of type null is incompatible with the declared type array of property $solidgauge.

        // Clear the spline.
        if (null !== $this->spline) {
            $this->spline->clear();
        }

        // Clear the treemap.
        $this->treemap = null;

It seems like null of type null is incompatible with the declared type array of property $treemap.

        // Clear the waterfall.
        $this->waterfall = null;

It seems like null of type null is incompatible with the declared type array of property $waterfall.

    }

    /**
     * Get the area.
     *
     * @return \WBW\Bundle\HighchartsBundle\API\Chart\PlotOptions\HighchartsArea Returns the area.
     */
    public function getArea() {
        return $this->area;
    }

    /**
     * Get the arearange.
     *
     * @return \WBW\Bundle\HighchartsBundle\API\Chart\PlotOptions\HighchartsArearange Returns the arearange.
     */
    public function getArearange() {
        return $this->arearange;
    }

    /**
     * Get the areaspline.
     *
     * @return \WBW\Bundle\HighchartsBundle\API\Chart\PlotOptions\HighchartsAreaspline Returns the areaspline.
     */
    public function getAreaspline() {
        return $this->areaspline;
    }

    /**
     * Get the areasplinerange.
     *
     * @return \WBW\Bundle\HighchartsBundle\API\Chart\PlotOptions\HighchartsAreasplinerange Returns the areasplinerange.
     */
    public function getAreasplinerange() {
        return $this->areasplinerange;
    }

    /**
     * Get the bar.
     *
     * @return \WBW\Bundle\HighchartsBundle\API\Chart\PlotOptions\HighchartsBar Returns the bar.
     */
    public function getBar() {
        return $this->bar;
    }

    /**
     * Get the boxplot.
     *
     * @return array Returns the boxplot.
     */
    public function getBoxplot() {
        return $this->boxplot;
    }

    /**
     * Get the bubble.
     *
     * @return array Returns the bubble.
     */
    public function getBubble() {
        return $this->bubble;
    }

    /**
     * Get the column.
     *
     * @return \WBW\Bundle\HighchartsBundle\API\Chart\PlotOptions\HighchartsColumn Returns the column.
     */
    public function getColumn() {
        return $this->column;
    }

    /**
     * Get the columnrange.
     *
     * @return array Returns the columnrange.
     */
    public function getColumnrange() {
        return $this->columnrange;
    }

    /**
     * Get the errorbar.
     *
     * @return array Returns the errorbar.
     */
    public function getErrorbar() {
        return $this->errorbar;
    }

    /**
     * Get the funnel.
     *
     * @return array Returns the funnel.
     */
    public function getFunnel() {
        return $this->funnel;
    }

    /**
     * Get the gauge.
     *
     * @return array Returns the gauge.
     */
    public function getGauge() {
        return $this->gauge;
    }

    /**
     * Get the heatmap.
     *
     * @return array Returns the heatmap.
     */
    public function getHeatmap() {
        return $this->heatmap;
    }

    /**
     * Get the line.
     *
     * @return \WBW\Bundle\HighchartsBundle\API\Chart\PlotOptions\HighchartsLine Returns the line.
     */
    public function getLine() {
        return $this->line;
    }

    /**
     * Get the pie.
     *
     * @return \WBW\Bundle\HighchartsBundle\API\Chart\PlotOptions\HighchartsPie Returns the pie.
     */
    public function getPie() {
        return $this->pie;
    }

    /**
     * Get the polygon.
     *
     * @return array Returns the polygon.
     */
    public function getPolygon() {
        return $this->polygon;
    }

    /**
     * Get the pyramid.
     *
     * @return array Returns the pyramid.
     */
    public function getPyramid() {
        return $this->pyramid;
    }

    /**
     * Get the scatter.
     *
     * @return \WBW\Bundle\HighchartsBundle\API\Chart\PlotOptions\HighchartsScatter Returns the scatter.
     */
    public function getScatter() {
        return $this->scatter;
    }

    /**
     * Get the series.
     *
     * @return \WBW\Bundle\HighchartsBundle\API\Chart\PlotOptions\HighchartsSeries Returns the series.
     */
    public function getSeries() {
        return $this->series;
    }

    /**
     * Get the solidgauge.
     *
     * @return array Returns the solidgauge.
     */
    public function getSolidgauge() {
        return $this->solidgauge;
    }

    /**
     * Get the spline.
     *
     * @return \WBW\Bundle\HighchartsBundle\API\Chart\PlotOptions\HighchartsSpline Returns the spline.
     */
    public function getSpline() {
        return $this->spline;
    }

    /**
     * Get the treemap.
     *
     * @return array Returns the treemap.
     */
    public function getTreemap() {
        return $this->treemap;
    }

    /**
     * Get the waterfall.
     *
     * @return array Returns the waterfall.
     */
    public function getWaterfall() {
        return $this->waterfall;
    }

    /**
     * Serialize this instance.
     *
     * @return array Returns an array representing this instance.
     */
    public function jsonSerialize() {
        return $this->toArray();
    }

    /**
     * Create a new area.
     *
     * @return \WBW\Bundle\HighchartsBundle\API\Chart\PlotOptions\HighchartsArea Returns the area.
     */
    public function newArea() {
        $this->area = new \WBW\Bundle\HighchartsBundle\API\Chart\PlotOptions\HighchartsArea();
        return $this->area;
    }

    /**
     * Create a new arearange.
     *
     * @return \WBW\Bundle\HighchartsBundle\API\Chart\PlotOptions\HighchartsArearange Returns the arearange.
     */
    public function newArearange() {
        $this->arearange = new \WBW\Bundle\HighchartsBundle\API\Chart\PlotOptions\HighchartsArearange();
        return $this->arearange;
    }

    /**
     * Create a new areaspline.
     *
     * @return \WBW\Bundle\HighchartsBundle\API\Chart\PlotOptions\HighchartsAreaspline Returns the areaspline.
     */
    public function newAreaspline() {
        $this->areaspline = new \WBW\Bundle\HighchartsBundle\API\Chart\PlotOptions\HighchartsAreaspline();
        return $this->areaspline;
    }

    /**
     * Create a new areasplinerange.
     *
     * @return \WBW\Bundle\HighchartsBundle\API\Chart\PlotOptions\HighchartsAreasplinerange Returns the areasplinerange.
     */
    public function newAreasplinerange() {
        $this->areasplinerange = new \WBW\Bundle\HighchartsBundle\API\Chart\PlotOptions\HighchartsAreasplinerange();
        return $this->areasplinerange;
    }

    /**
     * Create a new bar.
     *
     * @return \WBW\Bundle\HighchartsBundle\API\Chart\PlotOptions\HighchartsBar Returns the bar.
     */
    public function newBar() {
        $this->bar = new \WBW\Bundle\HighchartsBundle\API\Chart\PlotOptions\HighchartsBar();
        return $this->bar;
    }

    /**
     * Create a new column.
     *
     * @return \WBW\Bundle\HighchartsBundle\API\Chart\PlotOptions\HighchartsColumn Returns the column.
     */
    public function newColumn() {
        $this->column = new \WBW\Bundle\HighchartsBundle\API\Chart\PlotOptions\HighchartsColumn();
        return $this->column;
    }

    /**
     * Create a new line.
     *
     * @return \WBW\Bundle\HighchartsBundle\API\Chart\PlotOptions\HighchartsLine Returns the line.
     */
    public function newLine() {
        $this->line = new \WBW\Bundle\HighchartsBundle\API\Chart\PlotOptions\HighchartsLine();
        return $this->line;
    }

    /**
     * Create a new pie.
     *
     * @return \WBW\Bundle\HighchartsBundle\API\Chart\PlotOptions\HighchartsPie Returns the pie.
     */
    public function newPie() {
        $this->pie = new \WBW\Bundle\HighchartsBundle\API\Chart\PlotOptions\HighchartsPie();
        return $this->pie;
    }

    /**
     * Create a new scatter.
     *
     * @return \WBW\Bundle\HighchartsBundle\API\Chart\PlotOptions\HighchartsScatter Returns the scatter.
     */
    public function newScatter() {
        $this->scatter = new \WBW\Bundle\HighchartsBundle\API\Chart\PlotOptions\HighchartsScatter();
        return $this->scatter;
    }

    /**
     * Create a new series.
     *
     * @return \WBW\Bundle\HighchartsBundle\API\Chart\PlotOptions\HighchartsSeries Returns the series.
     */
    public function newSeries() {
        $this->series = new \WBW\Bundle\HighchartsBundle\API\Chart\PlotOptions\HighchartsSeries();
        return $this->series;
    }

    /**
     * Create a new spline.
     *
     * @return \WBW\Bundle\HighchartsBundle\API\Chart\PlotOptions\HighchartsSpline Returns the spline.
     */
    public function newSpline() {
        $this->spline = new \WBW\Bundle\HighchartsBundle\API\Chart\PlotOptions\HighchartsSpline();
        return $this->spline;
    }

    /**
     * Set the area.
     *
     * @param \WBW\Bundle\HighchartsBundle\API\Chart\PlotOptions\HighchartsArea $area The area.
     * @return \WBW\Bundle\HighchartsBundle\API\Chart\HighchartsPlotOptions Returns the highcharts plot options.
     */
    public function setArea(\WBW\Bundle\HighchartsBundle\API\Chart\PlotOptions\HighchartsArea $area = null) {
        $this->area = $area;
        return $this;
    }

    /**
     * Set the arearange.
     *
     * @param \WBW\Bundle\HighchartsBundle\API\Chart\PlotOptions\HighchartsArearange $arearange The arearange.
     * @return \WBW\Bundle\HighchartsBundle\API\Chart\HighchartsPlotOptions Returns the highcharts plot options.
     */
    public function setArearange(\WBW\Bundle\HighchartsBundle\API\Chart\PlotOptions\HighchartsArearange $arearange = null) {
        $this->arearange = $arearange;
        return $this;
    }

    /**
     * Set the areaspline.
     *
     * @param \WBW\Bundle\HighchartsBundle\API\Chart\PlotOptions\HighchartsAreaspline $areaspline The areaspline.
     * @return \WBW\Bundle\HighchartsBundle\API\Chart\HighchartsPlotOptions Returns the highcharts plot options.
     */
    public function setAreaspline(\WBW\Bundle\HighchartsBundle\API\Chart\PlotOptions\HighchartsAreaspline $areaspline = null) {
        $this->areaspline = $areaspline;
        return $this;
    }

    /**
     * Set the areasplinerange.
     *
     * @param \WBW\Bundle\HighchartsBundle\API\Chart\PlotOptions\HighchartsAreasplinerange $areasplinerange The areasplinerange.
     * @return \WBW\Bundle\HighchartsBundle\API\Chart\HighchartsPlotOptions Returns the highcharts plot options.
     */
    public function setAreasplinerange(\WBW\Bundle\HighchartsBundle\API\Chart\PlotOptions\HighchartsAreasplinerange $areasplinerange = null) {
        $this->areasplinerange = $areasplinerange;
        return $this;
    }

    /**
     * Set the bar.
     *
     * @param \WBW\Bundle\HighchartsBundle\API\Chart\PlotOptions\HighchartsBar $bar The bar.
     * @return \WBW\Bundle\HighchartsBundle\API\Chart\HighchartsPlotOptions Returns the highcharts plot options.
     */
    public function setBar(\WBW\Bundle\HighchartsBundle\API\Chart\PlotOptions\HighchartsBar $bar = null) {
        $this->bar = $bar;
        return $this;
    }

    /**
     * Set the boxplot.
     *
     * @param array $boxplot The boxplot.
     * @return \WBW\Bundle\HighchartsBundle\API\Chart\HighchartsPlotOptions Returns the highcharts plot options.
     */
    public function setBoxplot(array $boxplot = null) {
        $this->boxplot = $boxplot;

It seems like $boxplot can be null. However, the property $boxplot is declared as array. Maybe change the type of the property to array|null or add a type check?

        return $this;
    }

    /**
     * Set the bubble.
     *
     * @param array $bubble The bubble.
     * @return \WBW\Bundle\HighchartsBundle\API\Chart\HighchartsPlotOptions Returns the highcharts plot options.
     */
    public function setBubble(array $bubble = null) {
        $this->bubble = $bubble;

It seems like $bubble can be null. However, the property $bubble is declared as array. Maybe change the type of the property to array|null or add a type check?

        return $this;
    }

    /**
     * Set the column.
     *
     * @param \WBW\Bundle\HighchartsBundle\API\Chart\PlotOptions\HighchartsColumn $column The column.
     * @return \WBW\Bundle\HighchartsBundle\API\Chart\HighchartsPlotOptions Returns the highcharts plot options.
     */
    public function setColumn(\WBW\Bundle\HighchartsBundle\API\Chart\PlotOptions\HighchartsColumn $column = null) {
        $this->column = $column;
        return $this;
    }

    /**
     * Set the columnrange.
     *
     * @param array $columnrange The columnrange.
     * @return \WBW\Bundle\HighchartsBundle\API\Chart\HighchartsPlotOptions Returns the highcharts plot options.
     */
    public function setColumnrange(array $columnrange = null) {
        $this->columnrange = $columnrange;

It seems like $columnrange can be null. However, the property $columnrange is declared as array. Maybe change the type of the property to array|null or add a type check?

        return $this;
    }

    /**
     * Set the errorbar.
     *
     * @param array $errorbar The errorbar.
     * @return \WBW\Bundle\HighchartsBundle\API\Chart\HighchartsPlotOptions Returns the highcharts plot options.
     */
    public function setErrorbar(array $errorbar = null) {
        $this->errorbar = $errorbar;

It seems like $errorbar can be null. However, the property $errorbar is declared as array. Maybe change the type of the property to array|null or add a type check?

        return $this;
    }

    /**
     * Set the funnel.
     *
     * @param array $funnel The funnel.
     * @return \WBW\Bundle\HighchartsBundle\API\Chart\HighchartsPlotOptions Returns the highcharts plot options.
     */
    public function setFunnel(array $funnel = null) {
        $this->funnel = $funnel;

It seems like $funnel can be null. However, the property $funnel is declared as array. Maybe change the type of the property to array|null or add a type check?

        return $this;
    }

    /**
     * Set the gauge.
     *
     * @param array $gauge The gauge.
     * @return \WBW\Bundle\HighchartsBundle\API\Chart\HighchartsPlotOptions Returns the highcharts plot options.
     */
    public function setGauge(array $gauge = null) {
        $this->gauge = $gauge;

It seems like $gauge can be null. However, the property $gauge is declared as array. Maybe change the type of the property to array|null or add a type check?

        return $this;
    }

    /**
     * Set the heatmap.
     *
     * @param array $heatmap The heatmap.
     * @return \WBW\Bundle\HighchartsBundle\API\Chart\HighchartsPlotOptions Returns the highcharts plot options.
     */
    public function setHeatmap(array $heatmap = null) {
        $this->heatmap = $heatmap;

It seems like $heatmap can be null. However, the property $heatmap is declared as array. Maybe change the type of the property to array|null or add a type check?

        return $this;
    }

    /**
     * Set the line.
     *
     * @param \WBW\Bundle\HighchartsBundle\API\Chart\PlotOptions\HighchartsLine $line The line.
     * @return \WBW\Bundle\HighchartsBundle\API\Chart\HighchartsPlotOptions Returns the highcharts plot options.
     */
    public function setLine(\WBW\Bundle\HighchartsBundle\API\Chart\PlotOptions\HighchartsLine $line = null) {
        $this->line = $line;
        return $this;
    }

    /**
     * Set the pie.
     *
     * @param \WBW\Bundle\HighchartsBundle\API\Chart\PlotOptions\HighchartsPie $pie The pie.
     * @return \WBW\Bundle\HighchartsBundle\API\Chart\HighchartsPlotOptions Returns the highcharts plot options.
     */
    public function setPie(\WBW\Bundle\HighchartsBundle\API\Chart\PlotOptions\HighchartsPie $pie = null) {
        $this->pie = $pie;
        return $this;
    }

    /**
     * Set the polygon.
     *
     * @param array $polygon The polygon.
     * @return \WBW\Bundle\HighchartsBundle\API\Chart\HighchartsPlotOptions Returns the highcharts plot options.
     */
    public function setPolygon(array $polygon = null) {
        $this->polygon = $polygon;

It seems like $polygon can be null. However, the property $polygon is declared as array. Maybe change the type of the property to array|null or add a type check?

        return $this;
    }

    /**
     * Set the pyramid.
     *
     * @param array $pyramid The pyramid.
     * @return \WBW\Bundle\HighchartsBundle\API\Chart\HighchartsPlotOptions Returns the highcharts plot options.
     */
    public function setPyramid(array $pyramid = null) {
        $this->pyramid = $pyramid;

It seems like $pyramid can be null. However, the property $pyramid is declared as array. Maybe change the type of the property to array|null or add a type check?

        return $this;
    }

    /**
     * Set the scatter.
     *
     * @param \WBW\Bundle\HighchartsBundle\API\Chart\PlotOptions\HighchartsScatter $scatter The scatter.
     * @return \WBW\Bundle\HighchartsBundle\API\Chart\HighchartsPlotOptions Returns the highcharts plot options.
     */
    public function setScatter(\WBW\Bundle\HighchartsBundle\API\Chart\PlotOptions\HighchartsScatter $scatter = null) {
        $this->scatter = $scatter;
        return $this;
    }

    /**
     * Set the series.
     *
     * @param \WBW\Bundle\HighchartsBundle\API\Chart\PlotOptions\HighchartsSeries $series The series.
     * @return \WBW\Bundle\HighchartsBundle\API\Chart\HighchartsPlotOptions Returns the highcharts plot options.
     */
    public function setSeries(\WBW\Bundle\HighchartsBundle\API\Chart\PlotOptions\HighchartsSeries $series = null) {
        $this->series = $series;
        return $this;
    }

    /**
     * Set the solidgauge.
     *
     * @param array $solidgauge The solidgauge.
     * @return \WBW\Bundle\HighchartsBundle\API\Chart\HighchartsPlotOptions Returns the highcharts plot options.
     */
    public function setSolidgauge(array $solidgauge = null) {
        $this->solidgauge = $solidgauge;

It seems like $solidgauge can be null. However, the property $solidgauge is declared as array. Maybe change the type of the property to array|null or add a type check?

        return $this;
    }

    /**
     * Set the spline.
     *
     * @param \WBW\Bundle\HighchartsBundle\API\Chart\PlotOptions\HighchartsSpline $spline The spline.
     * @return \WBW\Bundle\HighchartsBundle\API\Chart\HighchartsPlotOptions Returns the highcharts plot options.
     */
    public function setSpline(\WBW\Bundle\HighchartsBundle\API\Chart\PlotOptions\HighchartsSpline $spline = null) {
        $this->spline = $spline;
        return $this;
    }

    /**
     * Set the treemap.
     *
     * @param array $treemap The treemap.
     * @return \WBW\Bundle\HighchartsBundle\API\Chart\HighchartsPlotOptions Returns the highcharts plot options.
     */
    public function setTreemap(array $treemap = null) {
        $this->treemap = $treemap;

It seems like $treemap can be null. However, the property $treemap is declared as array. Maybe change the type of the property to array|null or add a type check?

        return $this;
    }

    /**
     * Set the waterfall.
     *
     * @param array $waterfall The waterfall.
     * @return \WBW\Bundle\HighchartsBundle\API\Chart\HighchartsPlotOptions Returns the highcharts plot options.
     */
    public function setWaterfall(array $waterfall = null) {
        $this->waterfall = $waterfall;

It seems like $waterfall can be null. However, the property $waterfall is declared as array. Maybe change the type of the property to array|null or add a type check?

        return $this;
    }

    /**
     * Convert into an array representing this instance.
     *
     * @return array Returns an array representing this instance.
     */
    public function toArray() {

        // Initialize the output.
        $output = [];

        // Set the area.
        if (null !== $this->area) {
            ArrayUtility::set($output, "area", $this->area->toArray(), []);
        }

        // Set the arearange.
        if (null !== $this->arearange) {
            ArrayUtility::set($output, "arearange", $this->arearange->toArray(), []);
        }

        // Set the areaspline.
        if (null !== $this->areaspline) {
            ArrayUtility::set($output, "areaspline", $this->areaspline->toArray(), []);
        }

        // Set the areasplinerange.
        if (null !== $this->areasplinerange) {
            ArrayUtility::set($output, "areasplinerange", $this->areasplinerange->toArray(), []);
        }

        // Set the bar.
        if (null !== $this->bar) {
            ArrayUtility::set($output, "bar", $this->bar->toArray(), []);
        }

        // Set the boxplot.
        ArrayUtility::set($output, "boxplot", $this->boxplot, [null]);

        // Set the bubble.
        ArrayUtility::set($output, "bubble", $this->bubble, [null]);

        // Set the column.
        if (null !== $this->column) {
            ArrayUtility::set($output, "column", $this->column->toArray(), []);
        }

        // Set the columnrange.
        ArrayUtility::set($output, "columnrange", $this->columnrange, [null]);

        // Set the errorbar.
        ArrayUtility::set($output, "errorbar", $this->errorbar, [null]);

        // Set the funnel.
        ArrayUtility::set($output, "funnel", $this->funnel, [null]);

        // Set the gauge.
        ArrayUtility::set($output, "gauge", $this->gauge, [null]);

        // Set the heatmap.
        ArrayUtility::set($output, "heatmap", $this->heatmap, [null]);

        // Set the line.
        if (null !== $this->line) {
            ArrayUtility::set($output, "line", $this->line->toArray(), []);
        }

        // Set the pie.
        if (null !== $this->pie) {
            ArrayUtility::set($output, "pie", $this->pie->toArray(), []);
        }

        // Set the polygon.
        ArrayUtility::set($output, "polygon", $this->polygon, [null]);

        // Set the pyramid.
        ArrayUtility::set($output, "pyramid", $this->pyramid, [null]);

        // Set the scatter.
        if (null !== $this->scatter) {
            ArrayUtility::set($output, "scatter", $this->scatter->toArray(), []);
        }

        // Set the series.
        if (null !== $this->series) {
            ArrayUtility::set($output, "series", $this->series->toArray(), []);
        }

        // Set the solidgauge.
        ArrayUtility::set($output, "solidgauge", $this->solidgauge, [null]);

        // Set the spline.
        if (null !== $this->spline) {
            ArrayUtility::set($output, "spline", $this->spline->toArray(), []);
        }

        // Set the treemap.
        ArrayUtility::set($output, "treemap", $this->treemap, [null]);

        // Set the waterfall.
        ArrayUtility::set($output, "waterfall", $this->waterfall, [null]);

        // Return the output.
        return $output;
    }

}