Update SP List Metadata using PnP JS

var id = await pnp.sp.web.lists.getByTitle("Site Pages").items.filter("FileLeafRef+eq+\'" + pageName + "\'").select("Id").get();
console.log("Calling update Page properties called for - " + id[0].Id);
if(id.length > 0)
{
  await pnp.sp.web.lists.getByTitle("Site Pages").items.getById(id[0].Id).update({
    Field1: value1 != "" ? value1 : null,
    Field2: value2 != "" ? value2 : null,
    PeopleField1: peopleValID != "" ? peopleValID : null,
    PeopleMultiUserField1: multiusers.length > 0 ? {
      results: multiusers
    } : {results : null},
    Title : title
  }).then((iar: ItemUpdateResult) => {
    console.log(iar);
  });