query user($address: String){
  swaps(where:{caller:$address})
  {
    id
   
  }
}

function(data) {
  if (data == null || data.swaps == null) {
    return 0
  } else if (Array.isArray(data.swaps) && data.swaps.length == 0) {
    return 0
  }
  return 1
}