How to use the ember-leaflet/macros/to-lat-lng function in ember-leaflet

leafletOptions: Object.freeze([
    'icon', 'clickable', 'draggable', 'keyboard', 'title',
    'alt', 'zIndexOffset', 'opacity', 'riseOnHover', 'riseOffset'
  ]),

  leafletEvents: Object.freeze([
    'dragstart', 'drag', 'dragend', 'move', 'moveend',
    'remove', 'add', 'popupopen', 'popupclose'
  ]),

  leafletProperties: Object.freeze([
    'zIndexOffset', 'opacity', 'location:setLatLng'
  ]),

  location: toLatLng(),

  createLayer() {
    return this.L.marker(...this.get('requiredOptions'), this.get('options'));
  },

  // icon observer separated from generated (leaflet properties) due to a
  // leaflet bug where draggability is lost on icon change
  // eslint-disable-next-line ember/no-observers
  iconDidChange: observer('icon', function() {
    this._layer.setIcon(this.get('icon'));

    if (this.get('draggable')) {
      this._layer.dragging.enable();
    } else {
      this._layer.dragging.disable();
    }

'click', 'dblclick', 'mousedown', 'mouseup', 'mouseover', 'mouseout',
    'mousemove', 'contextmenu', 'focus', 'blur', 'preclick', 'load',
    'unload', 'viewreset', 'movestart', 'move', 'moveend', 'dragstart',
    'drag', 'dragend', 'zoomstart', 'zoomend', 'zoomlevelschange',
    'resize', 'autopanstart', 'layeradd', 'layerremove',
    'baselayerchange', 'overlayadd', 'overlayremove', 'locationfound',
    'locationerror', 'popupopen', 'popupclose'
  ]),

  leafletProperties: Object.freeze([
    'zoom:setZoom:zoomPanOptions', 'minZoom', 'maxZoom',
    'center:panTo:zoomPanOptions',
    'bounds:fitBounds:fitBoundsOptions', 'maxBounds'
  ]),

  center: toLatLng(),

  // By default all layers try to register in a container layer.
  // It is not the case of the map itself as it is the topmost container.
  registerWithParent() { },
  unregisterWithParent() { },

  createLayer() {
    let options = this.get('options');

    // Don't set center and zoom right now.
    // Let base layer bind the events first
    delete options.center;
    delete options.zoom;
    return this.L.map(this.element, options);
  },

import PathLayer from 'ember-leaflet/components/path-layer';
import toLatLng from 'ember-leaflet/macros/to-lat-lng';

export default PathLayer.extend({

  leafletRequiredOptions: Object.freeze([
    'location'
  ]),

  leafletProperties: Object.freeze([
    'location:setLatLng'
  ]),

  location: toLatLng()
});