linux-packaging-mono/mcs/class/referencesource/System.Data.Linq/SqlClient/Common/DbFormatter.cs

using System;
using System.Collections.Generic;
using System.Text;

namespace System.Data.Linq.SqlClient {
    internal abstract class DbFormatter {
        internal abstract string Format(SqlNode node, bool isDebug);
        internal abstract string Format(SqlNode node);
    }
}