How to use the igniteui-angular-charts/ES5/igx-stacked-fragment-series-component.IgxStackedFragmentSeriesComponent function in igniteui-angular-charts

fragment1.valueMemberPath = "Coal";
        fragment1.title = "Coal";

        const fragment2 = new IgxStackedFragmentSeriesComponent();
        fragment2.valueMemberPath = "Hydro";
        fragment2.title = "Hydro";

        const fragment3 = new IgxStackedFragmentSeriesComponent();
        fragment3.valueMemberPath = "Nuclear";
        fragment3.title = "Nuclear";

        const fragment4 = new IgxStackedFragmentSeriesComponent();
        fragment4.valueMemberPath = "Gas";
        fragment4.title = "Gas";

        const fragment5 = new IgxStackedFragmentSeriesComponent();
        fragment5.valueMemberPath = "Oil";
        fragment5.title = "Oil";

        fragments.push(fragment1);
        fragments.push(fragment2);
        fragments.push(fragment3);
        fragments.push(fragment4);
        fragments.push(fragment5);

        return fragments;
    }

public getFragments(): IgxStackedFragmentSeriesComponent[] {
        const fragments: IgxStackedFragmentSeriesComponent[] = [];

        const fragment1 = new IgxStackedFragmentSeriesComponent();
        fragment1.valueMemberPath = "Coal";
        fragment1.title = "Coal";

        const fragment2 = new IgxStackedFragmentSeriesComponent();
        fragment2.valueMemberPath = "Hydro";
        fragment2.title = "Hydro";

        const fragment3 = new IgxStackedFragmentSeriesComponent();
        fragment3.valueMemberPath = "Nuclear";
        fragment3.title = "Nuclear";

        const fragment4 = new IgxStackedFragmentSeriesComponent();
        fragment4.valueMemberPath = "Gas";
        fragment4.title = "Gas";

        const fragment5 = new IgxStackedFragmentSeriesComponent();
        fragment5.valueMemberPath = "Oil";
        fragment5.title = "Oil";

        fragments.push(fragment1);
        fragments.push(fragment2);
        fragments.push(fragment3);
        fragments.push(fragment4);
        fragments.push(fragment5);

public getFragments(): IgxStackedFragmentSeriesComponent[] {
        const fragments: IgxStackedFragmentSeriesComponent[] = [];

        const fragment1 = new IgxStackedFragmentSeriesComponent();
        fragment1.valueMemberPath = "Coal";
        fragment1.title = "Coal";

        const fragment2 = new IgxStackedFragmentSeriesComponent();
        fragment2.valueMemberPath = "Hydro";
        fragment2.title = "Hydro";

        const fragment3 = new IgxStackedFragmentSeriesComponent();
        fragment3.valueMemberPath = "Nuclear";
        fragment3.title = "Nuclear";

        const fragment4 = new IgxStackedFragmentSeriesComponent();
        fragment4.valueMemberPath = "Gas";
        fragment4.title = "Gas";

        const fragment5 = new IgxStackedFragmentSeriesComponent();
        fragment5.valueMemberPath = "Oil";
        fragment5.title = "Oil";

        fragments.push(fragment1);

public getFragments(): IgxStackedFragmentSeriesComponent[] {
        const fragments: IgxStackedFragmentSeriesComponent[] = [];

        const fragment1 = new IgxStackedFragmentSeriesComponent();
        fragment1.valueMemberPath = "Coal";
        fragment1.title = "Coal";

        const fragment2 = new IgxStackedFragmentSeriesComponent();
        fragment2.valueMemberPath = "Hydro";
        fragment2.title = "Hydro";

        const fragment3 = new IgxStackedFragmentSeriesComponent();
        fragment3.valueMemberPath = "Nuclear";
        fragment3.title = "Nuclear";

        const fragment4 = new IgxStackedFragmentSeriesComponent();
        fragment4.valueMemberPath = "Gas";
        fragment4.title = "Gas";

        const fragment5 = new IgxStackedFragmentSeriesComponent();
        fragment5.valueMemberPath = "Oil";
        fragment5.title = "Oil";

        fragments.push(fragment1);
        fragments.push(fragment2);
        fragments.push(fragment3);
        fragments.push(fragment4);
        fragments.push(fragment5);

        return fragments;
    }

public getFragments(): IgxStackedFragmentSeriesComponent[] {
        const fragments: IgxStackedFragmentSeriesComponent[] = [];

        const fragment1 = new IgxStackedFragmentSeriesComponent();
        fragment1.valueMemberPath = "Coal";
        fragment1.title = "Coal";

        const fragment2 = new IgxStackedFragmentSeriesComponent();
        fragment2.valueMemberPath = "Hydro";
        fragment2.title = "Hydro";

        const fragment3 = new IgxStackedFragmentSeriesComponent();
        fragment3.valueMemberPath = "Nuclear";
        fragment3.title = "Nuclear";

        const fragment4 = new IgxStackedFragmentSeriesComponent();
        fragment4.valueMemberPath = "Gas";
        fragment4.title = "Gas";

        const fragment5 = new IgxStackedFragmentSeriesComponent();