const { error } = await supabase
  .from('countries')
  .insert({ id: 1, name: 'Mordor' })
const { data, error } = await supabase
  .from('countries')
  .insert({ id: 1, name: 'Mordor' })
  .select()
const { error } = await supabase
  .from('countries')
  .insert([
    { id: 1, name: 'Mordor' },
    { id: 1, name: 'The Shire' },
  ])