compose(
  sortBy((x) => x),
  flatten,
  map((x) => [x, x * 2]),
);

somelib.compose(
  sortBy((x) => x),
  flatten,
  map((x) => [x, x * 2]),
);

composeFlipped(
  sortBy((x) => x),
  flatten,
  map((x) => [x, x * 2]),
);

somelib.composeFlipped(
  sortBy((x) => x),
  flatten,
  map((x) => [x, x * 2]),
);

// no regression (#4602)
const hasValue = hasOwnProperty(a, b);

this.compose(
  sortBy((x) => x),
  flatten,
);
this.a.b.c.compose(
  sortBy((x) => x),
  flatten,
);
someObj.someMethod(this.field.compose(a, b));

class A extends B {
  compose() {
    super.compose(
      sortBy((x) => x),
      flatten,
    );
  }
}

this.subscriptions.add(
  this.componentUpdates
    .pipe(startWith(this.props), distinctUntilChanged(isEqual))
    .subscribe((props) => {}),
);