(

(let config (DataSource 'config))
(let res_sink (DataSink 'result))


# Data
(let value (String 'test))
(let world (Write! world res_sink (Key) (HasNull value) '('('type))))

(let value (Int32 '1))
(let world (Write! world res_sink (Key) (HasNull value) '('('type))))

(let value (TzDatetime '"1546981200,Europe/Moscow"))
(let world (Write! world res_sink (Key) (HasNull value) '('('type))))

(let valye (/ (Float '1) (Float '0)))
(let world (Write! world res_sink (Key) (HasNull value) '('('type))))

# Optional 
(let value (Just (Int32 '1)))
(let world (Write! world res_sink (Key) (HasNull value) '('('type))))

# Tuple 
(let value '((Int32 '1) (String 'test) (Float '1)))
(let world (Write! world res_sink (Key) (HasNull value) '('('type))))

(let value '())
(let world (Write! world res_sink (Key) (HasNull value) '('('type))))

# Struct
(let value (AsStruct '('a (Int32 '1)) '('b (String 'one))))
(let world (Write! world res_sink (Key) (HasNull value) '('('type))))

(let value (Struct))
(let world (Write! world res_sink (Key) (HasNull value) '('('type))))

# Variant
(let valueType (VariantType (TupleType (DataType 'Int32) (NullType))))
(let value (Variant (Int32 '123) '0 valueType))
(let world (Write! world res_sink (Key) (HasNull value) '('('type))))

(let valueType (VariantType (StructType '('a (DataType 'Int32)) '('b (OptionalType (DataType 'String))))))
(let value (Variant (Int32 '1) 'a valueType))
(let world (Write! world res_sink (Key) (HasNull value) '('('type))))

# List 
(let value (AsList (Int32 '1) (Int32 '2) (Int32 '3)))
(let world (Write! world res_sink (Key) (HasNull value) '('('type))))

(let value (List (ListType (NullType))))
(let world (Write! world res_sink (Key) (HasNull value) '('('type))))

(let world (Commit! world res_sink))
(return world)
)