attachitemButtons is not defined

my add item button is not working and the console gives me the error on line 29 and line 77 attachitemButtons is not defined and on line 11 I made it a function this makes no sense there has got to be something else wrong

here is my code

const toggleList = document.getElementById('toggleList'); const listDiv = document.querySelector('.list'); const descriptionInput = document.querySelector('input.description'); const descriptionP = document.querySelector('p.description'); const descriptionButton = document.querySelector('button.description'); const listUl = listDiv.querySelector('ul') const addItemInput = document.querySelector('input.addItemInput');
const addItemButton = document.querySelector('button.addItemButton');
const lis = listUl.children;

function attachListItemsButtons(li) { let up = docoument.createElement ('button'); up.className = 'up'; up.textcontent = 'Up'; li.appendChild(up);

let down = docoument.createElement ('button'); down.className = 'down'; down.textContent = 'Down'; li.appendChild(down);

let remove = docoument.createElement ('button'); remove.className = 'remove'; down.textContent = 'Remove'; li.appendChild(remove); }

for (let i = 0; i < lis.length; i += 1){ attachListItemButtons(lis[i]); }

listUl.addEventListener('click', (event) => { if (event.target.tagName == 'BUTTON') { if (event.target.className == 'remove') { let li = event.target.parentNode; let ul = li.parentNode; ul.removeChild(li); } if (event.target.className == 'up') { let li = event.target.parentNode; let prevLi = li.previousElementSibling; let ul = li.parentNode; if (prevLi) { ul.insertBefore(li, prevLi); } }
if (event.target.className == 'down') { let li = event.target.parentNode; let nextLi = li.nextElementSibling; let ul = li.parentNode; if (nextLi) { ul.insertBefore(nextLi, li); } } } });

toggleList.addEventListener('click', () => { if (listDiv.style.display == 'none') { toggleList.textContent = 'Hide list'; listDiv.style.display = 'block'; } else { toggleList.textContent = 'Show list'; listDiv.style.display = 'none'; } });

descriptionButton.addEventListener('click', () => { descriptionP.innerHTML = descriptionInput.value + ':'; descriptionP.value = ''; });

addItemButton.addEventListener('click', () => { let ul = document.getElementsByTagName('ul')[0]; let li = document.createElement('li'); li.textContent = addItemInput.value; attachListItemButtons(li); ul.appendChild(li); addItemInput.value = ''; });