FirebirdSql.Data.FirebirdClient v10.3.1.

I have a Dapper query that attempts to insert a DateTimeOffset value but fails with ArgumentException: "Invalid data type: 27.".
Simplified version:

 var connectionString = "..."; var connection = new FbConnection(connectionString); await connection.QueryFirstAsync<DateTimeOffset>( "select cast(@value as timestamp) from rdb$database", new { Value = DateTimeOffset.UtcNow });

I've debugged the code and it looks like FbParameter.DbType property does not accept DateTimeOffset value.

 var param = new FbParameter() { DbType = DbType.DateTimeOffset // ArgumentException here };

As a workaround I've used DateTime values but it will be much better to have DateTimeOffsert params to work out of the box.