update multiple records including upsert on linked fields

is there a way to update multiple records including upsert on linked records? 

// fld4nItZFaesqE3hi: 'Pet-Dose' is a linked record
 chunk=[ {
    id: 'recDZL0CMwcu8nh0w',
    fields: {
      fld4nItZFaesqE3hi: 'Pet-Dose',
      fld6kqVwPYlYRsI73: 0.715
    }
  },
  {
    id: 'recoAcgIEbo0vXqRv',
    fields: {
      fld4nItZFaesqE3hi: 'Pet-Dose',
      fld6kqVwPYlYRsI73: 1
    }
  }];

 //update records
        chunks.forEach(function (chunk) {
            airtable.base(baseID)('Artikel').update(chunk, {typecast:true}, function (err, records) {
                if (err) {
                    console.error(err);
                    return;
                }
             
            });
        });