query user($address: ID!){
  users(where: {id: $address}) {
    id
    vaultCount
  }
}

function(data) {
  if (data == null || data.users == null) {
    return 0
  } else if (Array.isArray(data.users) && data.users.length == 0) {
    return 0
  } else if (data.users[0].vaultCount == 0) {
    return 0
  }
  return 1
}