Deprecated methods in rxjs v6

I try to use combineLatest:

import { combineLatest } from 'rxjs/Observable';

but I get the warning

combineLatest is deprecated: Deprecated in favor of static combineLatest. 

If I follow the solution provided in the RxJS v5.x to v6 Update Guide as it is stated here and I write

import { combineLatest } from 'rxjs';

then I get the tslint message:

This import is blacklisted, import a submodule instead

which seems a bit a snake biting its own tail...

If I use

import { combineLatest } from 'rxjs/internal/observable/combineLatest';

then it works without warning messages, but as far as I know, it's not recommended to import internal packages (correct me if I'm wrong).

Disabling tslint messages doesn't seem acceptable to me.

Example:

this.Subscription = combineLatest([a,b])
    .pipe(
      map( (...) )
    ).subscribe( (...) );

Which is the appropriate solution? Thanks.