threadsafeMutation.swift

    //1 , cant be right as assigning instance variable does not make a copy
		var fooBar = self.fooBar
            fooBar.forEach({ foo in
                if foo.id == bar.id {
                    fooBar.remove(at: fooBar.index(of: foo)!)
                }
            })
        self.fooBar = fooBar
		
    //2, seems right as enumerated makes a copy
    for (index, foo) in self.fooBar.enumerated() where foo.id == bar.id {
            self.fooBar.remove(at: index)
    }	

    //3 Expression type 'Bool' is ambiguous without more context
    public func remove(location: LocationModel) {
           self.locationsList.removeAll { $0.id == location.id }
    }