function component() {
let x = {};
let p = {};
let q = {};
let y = {};
x.y = y;
p.y = x.y;
q.y = p.y;
mutate(q);
}
function component() {
let x = {};
let p = {};
let q = {};
let y = {};
x.y = y;
p.y = x.y;
q.y = p.y;
mutate(q);
}