title: ionic-selectable: error TS1086: An accessor cannot be declared in an ambient context
body: <p>When building in prod mode for an ionic app -- I get</p>
  
  <pre><code>[ng] ERROR in node_modules/ionic-selectable/src/app/components/ionic-selectable/ionic-selectable-modal.component.d.ts:13:9 - error TS1086: An accessor cannot be declared in an ambient context.
  [ng] 13     get _canClearCssClass(): boolean;
  [ng]            ~~~~~~~~~~~~~~~~~
  [ng] node_modules/ionic-selectable/src/app/components/ionic-selectable/ionic-selectable-modal.component.d.ts:14:9 - error TS1086: An accessor cannot be declared in an ambient context.
  [ng] 14     get _isMultipleCssClass(): boolean;
  [ng]            ~~~~~~~~~~~~~~~~~~~
  [ng] node_modules/ionic-selectable/src/app/components/ionic-selectable/ionic-selectable-modal.component.d.ts:15:9 - error TS1086: An accessor cannot be declared in an ambient context.
  [ng] 15     get _isSearchingCssClass(): boolean;
  [ng]            ~~~~~~~~~~~~~~~~~~~~
  [ng] node_modules/ionic-selectable/src/app/components/ionic-selectable/ionic-selectable-modal.component.d.ts:16:9 - error TS1086: An accessor cannot be declared in an ambient context.
  [ng] 16     get _isIos(): boolean;
  [ng]            ~~~~~~
  [ng] node_modules/ionic-selectable/src/app/components/ionic-selectable/ionic-selectable-modal.component.d.ts:18:9 - error TS1086: An accessor cannot be declared in an ambient context.
  [ng] 18     get _isAddItemTemplateVisibleCssClass(): boolean;
  [ng]            ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  [ng] node_modules/ionic-selectable/src/app/components/ionic-selectable/ionic-selectable.component.d.ts:16:9 - error TS1086: An accessor cannot be declared in an ambient context.
  [ng] 16     get _isMultipleCssClass(): boolean;
  [ng]            ~~~~~~~~~~~~~~~~~~~
  [ng] node_modules/ionic-selectable/src/app/components/ionic-selectable/ionic-selectable.component.d.ts:17:9 - error TS1086: An accessor cannot be declared in an ambient context.
  [ng] 17     get _hasValueCssClass(): boolean;
  [ng]            ~~~~~~~~~~~~~~~~~
  [ng] node_modules/ionic-selectable/src/app/components/ionic-selectable/ionic-selectable.component.d.ts:18:9 - error TS1086: An accessor cannot be declared in an ambient context.
  [ng] 18     get _hasPlaceholderCssClass(): boolean;
  [ng]            ~~~~~~~~~~~~~~~~~~~~~~~
  [ng] node_modules/ionic-selectable/src/app/components/ionic-selectable/ionic-selectable.component.d.ts:19:9 - error TS1086: An accessor cannot be declared in an ambient context.
  [ng] 19     get _hasIonLabelCssClass(): boolean;
  [ng]            ~~~~~~~~~~~~~~~~~~~~
  [ng] node_modules/ionic-selectable/src/app/components/ionic-selectable/ionic-selectable.component.d.ts:20:9 - error TS1086: An accessor cannot be declared in an ambient context.
  [ng] 20     get _hasDefaultIonLabelCssClass(): boolean;
  [ng]            ~~~~~~~~~~~~~~~~~~~~~~~~~~~
  [ng] node_modules/ionic-selectable/src/app/components/ionic-selectable/ionic-selectable.component.d.ts:21:9 - error TS1086: An accessor cannot be declared in an ambient context.
  [ng] 21     get _hasFixedIonLabelCssClass(): boolean;
  [ng]            ~~~~~~~~~~~~~~~~~~~~~~~~~
  [ng] node_modules/ionic-selectable/src/app/components/ionic-selectable/ionic-selectable.component.d.ts:22:9 - error TS1086: An accessor cannot be declared in an ambient context.
  [ng] 22     get _hasStackedIonLabelCssClass(): boolean;
  [ng]            ~~~~~~~~~~~~~~~~~~~~~~~~~~~
  [ng] node_modules/ionic-selectable/src/app/components/ionic-selectable/ionic-selectable.component.d.ts:23:9 - error TS1086: An accessor cannot be declared in an ambient context.
  [ng] 23     get _hasFloatingIonLabelCssClass(): boolean;
  [ng]            ~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  [ng] node_modules/ionic-selectable/src/app/components/ionic-selectable/ionic-selectable.component.d.ts:44:17 - error TS1086: An accessor cannot be declared in an ambient context.
  [ng] 44     private get _hasInfiniteScroll();
  [ng]                    ~~~~~~~~~~~~~~~~~~
  [ng] node_modules/ionic-selectable/src/app/components/ionic-selectable/ionic-selectable.component.d.ts:45:9 - error TS1086: An accessor cannot be declared in an ambient context.
  [ng] 45     get _shouldStoreItemValue(): boolean;
  [ng]            ~~~~~~~~~~~~~~~~~~~~~
  [ng] node_modules/ionic-selectable/src/app/components/ionic-selectable/ionic-selectable.component.d.ts:70:9 - error TS1086: An accessor cannot be declared in an ambient context.
  [ng] 70     get label(): string;
  [ng]            ~~~~~
  [ng] node_modules/ionic-selectable/src/app/components/ionic-selectable/ionic-selectable.component.d.ts:79:9 - error TS1086: An accessor cannot be declared in an ambient context.
  [ng] 79     get searchText(): string;
  [ng]            ~~~~~~~~~~
  [ng] node_modules/ionic-selectable/src/app/components/ionic-selectable/ionic-selectable.component.d.ts:80:9 - error TS1086: An accessor cannot be declared in an ambient context.
  [ng] 80     set searchText(searchText: string);
  [ng]            ~~~~~~~~~~
  [ng] node_modules/ionic-selectable/src/app/components/ionic-selectable/ionic-selectable.component.d.ts:89:9 - error TS1086: An accessor cannot be declared in an ambient context.
  [ng] 89     get isSearching(): boolean;
  [ng]            ~~~~~~~~~~~
  [ng] node_modules/ionic-selectable/src/app/components/ionic-selectable/ionic-selectable.component.d.ts:98:9 - error TS1086: An accessor cannot be declared in an ambient context.
  [ng] 98     get hasSearchText(): boolean;
  [ng]            ~~~~~~~~~~~~~
  [ng] node_modules/ionic-selectable/src/app/components/ionic-selectable/ionic-selectable.component.d.ts:99:9 - error TS1086: An accessor cannot be declared in an ambient context.
  [ng] 99     get value(): any;
  [ng]            ~~~~~
  [ng] node_modules/ionic-selectable/src/app/components/ionic-selectable/ionic-selectable.component.d.ts:100:9 - error TS1086: An accessor cannot be declared in an ambient context.
  [ng] 100     set value(value: any);
  [ng]             ~~~~~
  [ng] node_modules/ionic-selectable/src/app/components/ionic-selectable/ionic-selectable.component.d.ts:117:9 - error TS1086: An accessor cannot be declared in an ambient context.
  [ng] 117     get isEnabled(): boolean;
  [ng]             ~~~~~~~~~
  [ng] node_modules/ionic-selectable/src/app/components/ionic-selectable/ionic-selectable.component.d.ts:118:9 - error TS1086: An accessor cannot be declared in an ambient context.
  [ng] 118     set isEnabled(isEnabled: boolean);
  [ng]             ~~~~~~~~~
  [ng] node_modules/ionic-selectable/src/app/components/ionic-selectable/ionic-selectable.component.d.ts:126:9 - error TS1086: An accessor cannot be declared in an ambient context.
  [ng] 126     get shouldBackdropClose(): boolean;
  [ng]             ~~~~~~~~~~~~~~~~~~~
  </code></pre>
  
  <p>Any ideas on how to fix this?</p>