How to use Pagination on Calculations? Do I need to handcraft my own Pagination macro?

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This is the channel query for that response

{
  channel(id: "channel ID") {
    id
    channelMessages(offset: 0, limit: 100) {
      count
      hasNextPage
      results {
        ...on TextChannelMessage {
          id
        }
        ...on ImageChannelMessages {
          id
        }
      }
    }
  }
}

This is the calculation module

defmodule MyApp.ChannelMessages do
  use Ash.Calculation

  def load(_, _, context) do
    limit = context[:limit] || 100
    offset = context[:offset] || 0

    [
      :channel_messages_count,
      messages: MyApp.Message |> Ash.Query.limit(limit) |> Ash.Query.offset(offset)
    ]
  end

  def calculate([record], _,  _) do
     {:ok,
     [
       %{
         id: record.id,
         count: record.channel_messages_count,
         has_next_page: false,
         results:
           record.messages
           |> Enum.map(
             &%Ash.Union{type: MyApp.ChannelMessageUnion.struct_to_name(&1), value: &1}
           )
       }
     ]}
  end
end

This calculation is set in the Channel resource.

We also made sure that in iex we get the result for channel_messages from the calculation