entries = {const fields = data.split("\n").map(el => html`${el}`);
return fields
.reduce((acc, el, i) => {
if(i === 0 || i === fields.length - 1) {
acc.set(i === 0 ? 'first' : 'last', new Date(el.attributes.datetime.value));
}
acc.set(new Date(el.attributes.datetime.value), el.textContent);
return acc;
}, new Map)
}