Fix typings problem of the [at-loader]:
Fix typings problem of the [at-loader]:

[at-loader] Checking finished with 2 errors
[at-loader] src\app-artem\courses\courses.component.ts:17:9
    TS2322: Type '{}' is not assignable to type 'CourseModel[]'.

[at-loader] src\app-artem\courses\courses.component.ts:17:9
    TS2322: Type '{}' is not assignable to type 'CourseModel[]'.
  Property 'find' is missing in type '{}'.

last-indigo/angular-mp,last-indigo/angular-mp,last-indigo/angular-mp