PaginationHelpers.swift

private func isLastItem(index: Int) -> Bool {
  index == (items.count - 1)
}

private func isOffsetReached(at index: Int) -> Bool {
  index == (items.count - offset)
}

private func itemAppears(at index: Int) {
  if isOffsetReached(at: index) {
    isLoading = true

    pagination {
      self.isLoading = false
    }
  }
}