namespace Microsoft.Data.Analysis
{
    [DefaultMember("Item")]
    public abstract class DataFrameColumn : IEnumerable
    {
        protected static void PopulateColumnSortIndicesWithHeap<T>(SortedDictionary<T, List<(int, int)>> heapOfValueAndListOfTupleOfSortAndBufferIndex, PrimitiveDataFrameColumn<long> columnSortIndices, PrimitiveDataFrameColumn<long> columnNullIndices, bool ascending, bool putNullValuesLast, GetBufferSortIndex getBufferSortIndex, GetValueAndBufferSortIndexAtBuffer<T> getValueAndBufferSortIndexAtBuffer, GetBufferLengthAtIndex getBufferLengthAtIndex);
    }
}