When I try to add "fastFadeOut" property it gives error?

[lakhvir1994]

Hello,
I am working in angular 8 and I have used this repository, I want to to show and hide loader without fade-in/fade-out effect. So I check the document and find "fastFadeOut" property.
When I add this property in "forRoot" then it gives error in terminal.

How I use :

import { NgxUiLoaderModule, NgxUiLoaderRouterModule, NgxUiLoaderConfig } from 'ngx-ui-loader';
const ngxUiLoaderConfig: NgxUiLoaderConfig = {
fastFadeOut:true,
maxTime:5000
};
@NgModule({
imports: [
NgxUiLoaderModule.forRoot(ngxUiLoaderConfig),
NgxUiLoaderRouterModule.forRoot({loaderId: 'main'})
]
})

Error :

ERROR in src/app/app.module.ts(104,3): error TS2322: Type '{ fastFadeOut: boolean; maxTime: number; }' is not assignable to type 'NgxUiLoaderConfig'.
Object literal may only specify known properties, and 'fastFadeOut' does not exist in type 'NgxUiLoaderConfig'.

Any kind of help is appreciated.