public class Trie implements Speller $\{$

$//$TODO: document this method

@Override

public void insertWord$($String s$)\{$

$//$ TODO Implement this method

$\}$

$//$TODO: document this method

@Override

public boolean contains$($String s$)\{$

$//$ TODO Implement this method

return false;

$\}$

$//$TODO: document this method

@Override

public String$[]$ getSuggestions$($String s$)\{$

$//$ TODO Implement this method

return null;

$\}$

$\}$

use this layout