How to add search control on leaflet map using Angular 2?

I am using leaflet.js with ngx-leaflet and esri-leaflet-geocoder packages.

I am able to using search box on the leaflet map with plain JavaScript. All I need is the following line:

var searchControl = L.esri.Geocoding.geosearch().addTo(mymap);

But I am unable to accomplish this in Angular. I tried the following:

layers = [];
searchControl = Geocoding.geosearch();
this.layers.push(this.searchControl); // in the constructor

HTML:

<div style="height: 300px;"
     leaflet
     [leafletOptions]="options"
     [leafletLayersControl]="layersControl"
     [leafletLayers]="layers"
     [leafletFitBounds]="this.polygon.getBounds()"
     (leafletClick)="mapClicked($event)">
</div>

I am getting the error which says:

ERROR Error: "The provided object is not a Layer."

I consoled searchControl and the result is same for both plain JavaScript and Angular.

A workaround not sure if it's a best solution.

Import CSS of the plugin:

import 'style-loader!esri-leaflet-geocoder/dist/esri-leaflet-geocoder.css';

Pass the map object when the map is ready:

<div style="height: 300px;"
     leaflet
     [leafletOptions]="options"
     [leafletLayersControl]="layersControl"
     [leafletLayers]="layers"
     [leafletFitBounds]="polygon.getBounds()"
     (leafletClick)="mapClicked($event)"
     (leafletMapReady)="onMapReady($event)">>
</div>

And add controller to the map same like plain JavaScript:

onMapReady(map: L.Map) {
  setTimeout(() => {
    map.invalidateSize(true);
    this.searchControl.addTo(map);
  }, 0);
}