diff --git a/module/core/mod_interface_meta/src/record.rs b/module/core/mod_interface_meta/src/record.rs
index 158d5f7fe7..8c6a76d57a 100644
--- a/module/core/mod_interface_meta/src/record.rs
+++ b/module/core/mod_interface_meta/src/record.rs
@@ -2,7 +2,6 @@
 pub( crate ) mod private
 {
   use crate::*;
-  use derive_tools::IsVariant;
   use macro_tools::exposed::*;
 
   ///
@@ -18,7 +17,7 @@ pub( crate ) mod private
   /// Kind of element.
   ///
 
-  #[ derive( IsVariant, Debug, PartialEq, Eq, Clone, Copy ) ]
+  #[ derive( Debug, PartialEq, Eq, Clone, Copy ) ]
   pub enum ElementType
   {
     MicroModule( syn::token::Mod ),
diff --git a/module/move/unitore/src/action/config.rs b/module/move/unitore/src/action/config.rs
index eef632b981..9dfc356fe0 100644
--- a/module/move/unitore/src/action/config.rs
+++ b/module/move/unitore/src/action/config.rs
@@ -3,7 +3,7 @@
 use std::path::PathBuf;
 
 use crate::*;
-use error_tools::{ untyped::Context, Result };
+use error_tools::{ untyped::Context, untyped::Result };
 use sled_adapter::FeedStorage;
 use entity::
 {
diff --git a/module/move/unitore/src/action/feed.rs b/module/move/unitore/src/action/feed.rs
index 70063de854..6ef23cc1ab 100644
--- a/module/move/unitore/src/action/feed.rs
+++ b/module/move/unitore/src/action/feed.rs
@@ -4,7 +4,7 @@ use crate::*;
 use action::{ Report, frame::SelectedEntries };
 use sled_adapter::FeedStorage;
 use entity::feed::FeedStore;
-use error_tools::Result;
+use error_tools::untyped::Result;
 
 /// List all feeds from storage.
 pub async fn feeds_list( mut storage : FeedStorage< gluesql::sled_storage::SledStorage > ) -> Result< impl Report >
diff --git a/module/move/unitore/src/action/frame.rs b/module/move/unitore/src/action/frame.rs
index 2acb4cd168..fc23b10683 100644
--- a/module/move/unitore/src/action/frame.rs
+++ b/module/move/unitore/src/action/frame.rs
@@ -10,7 +10,7 @@ use entity::
 };
 use gluesql::prelude::{ Payload, Value, SledStorage };
 use feed_config;
-use error_tools::{ err, Result };
+use error_tools::{ err, untyped::Result };
 use action::Report;
 
 // qqq : review the whole project and make sure all names are consitant: actions, commands, its tests
diff --git a/module/move/unitore/src/action/query.rs b/module/move/unitore/src/action/query.rs
index d9f4180384..f3de3beefe 100644
--- a/module/move/unitore/src/action/query.rs
+++ b/module/move/unitore/src/action/query.rs
@@ -6,7 +6,7 @@ use crate::*;
 use gluesql::core::executor::Payload;
 use sled_adapter::Store;
 use action::Report;
-use error_tools::Result;
+use error_tools::untyped::Result;
 
 /// Execute query specified in query string.
 pub async fn query_execute
diff --git a/module/move/unitore/src/action/table.rs b/module/move/unitore/src/action/table.rs
index ce9a4e756f..03a4b0da06 100644
--- a/module/move/unitore/src/action/table.rs
+++ b/module/move/unitore/src/action/table.rs
@@ -6,7 +6,7 @@ use std::collections::HashMap;
 use action::Report;
 use sled_adapter::FeedStorage;
 use entity::table::TableStore;
-use error_tools::Result;
+use error_tools::untyped::Result;
 
 /// Get labels of column for specified table.
 pub async fn table_list
diff --git a/module/move/unitore/src/command/config.rs b/module/move/unitore/src/command/config.rs
index 72eb063007..bbd436ccb9 100644
--- a/module/move/unitore/src/command/config.rs
+++ b/module/move/unitore/src/command/config.rs
@@ -7,7 +7,7 @@ use gluesql::sled_storage::sled::Config;
 use wca::{ Command, Type, VerifiedCommand };
 use sled_adapter::FeedStorage;
 use action::{ Report, config::{ config_add, config_delete, config_list } };
-use error_tools::Result;
+use error_tools::untyped::Result;
 
 /// Struct that provides commands for config files.
 #[ derive( Debug ) ]
diff --git a/module/move/unitore/src/command/feed.rs b/module/move/unitore/src/command/feed.rs
index 148d404952..b6aeaccd0a 100644
--- a/module/move/unitore/src/command/feed.rs
+++ b/module/move/unitore/src/command/feed.rs
@@ -5,7 +5,7 @@ use gluesql::sled_storage::sled::Config;
 use wca::{ Command, VerifiedCommand };
 use sled_adapter::FeedStorage;
 use action::{ Report, feed::feeds_list };
-use error_tools::Result;
+use error_tools::untyped::Result;
 
 /// Struct that provides commands for feed.
 #[ derive( Debug ) ]
diff --git a/module/move/unitore/src/command/frame.rs b/module/move/unitore/src/command/frame.rs
index 8a4f18a756..230a704cfa 100644
--- a/module/move/unitore/src/command/frame.rs
+++ b/module/move/unitore/src/command/frame.rs
@@ -5,7 +5,7 @@ use gluesql::sled_storage::sled::Config;
 use wca::{ Command, VerifiedCommand };
 use sled_adapter::FeedStorage;
 use action::{ Report, frame::{ frames_list, frames_download } };
-use error_tools::Result;
+use error_tools::untyped::Result;
 
 /// Struct that provides commands for frames.
 #[ derive( Debug ) ]
diff --git a/module/move/unitore/src/command/query.rs b/module/move/unitore/src/command/query.rs
index 24519e1a86..67a76dffed 100644
--- a/module/move/unitore/src/command/query.rs
+++ b/module/move/unitore/src/command/query.rs
@@ -5,7 +5,7 @@ use gluesql::sled_storage::sled::Config;
 use wca::{ Command, Type, VerifiedCommand };
 use sled_adapter::FeedStorage;
 use action::{ Report, query::query_execute };
-use error_tools::Result;
+use error_tools::untyped::Result;
 
 /// Struct that provides commands for queries.
 #[ derive( Debug ) ]
diff --git a/module/move/unitore/src/command/table.rs b/module/move/unitore/src/command/table.rs
index 67c82f23a0..29f971695b 100644
--- a/module/move/unitore/src/command/table.rs
+++ b/module/move/unitore/src/command/table.rs
@@ -5,7 +5,7 @@ use gluesql::sled_storage::sled::Config;
 use wca::{ Command, Type, VerifiedCommand };
 use sled_adapter::FeedStorage;
 use action::{ Report, table::{ table_list, tables_list } };
-use error_tools::Result;
+use error_tools::untyped::Result;
 
 /// Struct that provides commands for table information.
 #[ derive( Debug ) ]
diff --git a/module/move/unitore/src/entity/config.rs b/module/move/unitore/src/entity/config.rs
index b28a90a1dc..92f9f550d6 100644
--- a/module/move/unitore/src/entity/config.rs
+++ b/module/move/unitore/src/entity/config.rs
@@ -1,6 +1,6 @@
 //! Functionality for storing and retrieving config files.
 
-use error_tools::Result;
+use error_tools::untyped::Result;
 use gluesql::core::executor::Payload;
 
 /// Config file path.
diff --git a/module/move/unitore/src/entity/feed.rs b/module/move/unitore/src/entity/feed.rs
index 7084e841dd..449627e7ff 100644
--- a/module/move/unitore/src/entity/feed.rs
+++ b/module/move/unitore/src/entity/feed.rs
@@ -2,7 +2,7 @@
 
 use crate::*;
 use std::time::Duration;
-use error_tools::Result;
+use error_tools::untyped::Result;
 use gluesql::core::
 {
   ast_builder::{ null, text, timestamp, ExprNode },
diff --git a/module/move/unitore/src/entity/frame.rs b/module/move/unitore/src/entity/frame.rs
index 8fb522ad58..23bc76718d 100644
--- a/module/move/unitore/src/entity/frame.rs
+++ b/module/move/unitore/src/entity/frame.rs
@@ -1,7 +1,7 @@
 //! Frame storing and retrieving functionality.
 
 use crate::*;
-use error_tools::Result;
+use error_tools::untyped::Result;
 use gluesql::core::
 {
   ast_builder::{ null, text, timestamp, ExprNode }, chrono::{ DateTime, SecondsFormat, Utc }, executor::Payload
diff --git a/module/move/unitore/src/entity/table.rs b/module/move/unitore/src/entity/table.rs
index b177c3c934..c0e5eb62b2 100644
--- a/module/move/unitore/src/entity/table.rs
+++ b/module/move/unitore/src/entity/table.rs
@@ -1,7 +1,7 @@
 //! Functionality for storage tables information.
 
 use crate::*;
-use error_tools::Result;
+use error_tools::untyped::Result;
 use gluesql::prelude::Payload;
 
 use action::table::TablesReport;
diff --git a/module/move/unitore/src/executor.rs b/module/move/unitore/src/executor.rs
index 8010dbd9cc..c3cb899854 100644
--- a/module/move/unitore/src/executor.rs
+++ b/module/move/unitore/src/executor.rs
@@ -2,7 +2,7 @@
 
 use crate::*;
 use wca::{ Dictionary, Executor, Parser, Verifier };
-use error_tools::Result;
+use error_tools::untyped::Result;
 
 /// Run feed updates.
 pub fn execute() -> Result< (), Box< dyn std::error::Error + Send + Sync > >
diff --git a/module/move/unitore/src/feed_config.rs b/module/move/unitore/src/feed_config.rs
index 4cb2661fb3..d792c96fc1 100644
--- a/module/move/unitore/src/feed_config.rs
+++ b/module/move/unitore/src/feed_config.rs
@@ -1,7 +1,7 @@
 //! Reading and parsing of subscription configuration file.
 
 use std::{ fs::OpenOptions, io::{ BufReader, Read } };
-use error_tools::{ untyped::Context, Result };
+use error_tools::{ untyped::Context, untyped::Result };
 use serde::Deserialize;
 
 /// Configuration for subscription to feed resource.
diff --git a/module/move/unitore/src/retriever.rs b/module/move/unitore/src/retriever.rs
index b41c466c2d..203789ca5b 100644
--- a/module/move/unitore/src/retriever.rs
+++ b/module/move/unitore/src/retriever.rs
@@ -9,7 +9,7 @@ use hyper_util::
 use http_body_util::{ Empty, BodyExt };
 use hyper::body::Bytes;
 use feed_rs::parser as feed_parser;
-use error_tools::{ Result, untyped::Context };
+use error_tools::{ untyped::Result, untyped::Context };
 
 // qqq : purpose of trait if any?
 // aaa : removed unnecessary trait
diff --git a/module/move/unitore/src/sled_adapter/config.rs b/module/move/unitore/src/sled_adapter/config.rs
index a3b0cc73d8..a873c229df 100644
--- a/module/move/unitore/src/sled_adapter/config.rs
+++ b/module/move/unitore/src/sled_adapter/config.rs
@@ -1,7 +1,7 @@
 //! Config file operation with Sled storage.
 
 use crate::*;
-use error_tools::{ err, Result };
+use error_tools::{ err, untyped::Result };
 use gluesql::
 {
   core::
diff --git a/module/move/unitore/src/sled_adapter/feed.rs b/module/move/unitore/src/sled_adapter/feed.rs
index 273cafd2bd..fda59782bb 100644
--- a/module/move/unitore/src/sled_adapter/feed.rs
+++ b/module/move/unitore/src/sled_adapter/feed.rs
@@ -2,7 +2,7 @@
 
 use crate::*;
 use std::time::Duration;
-use error_tools::{ Result, untyped::Context };
+use error_tools::{ untyped::Result, untyped::Context };
 use gluesql::
 {
   core::
@@ -25,7 +25,7 @@ use action::
   frame::{ UpdateReport, SelectedEntries, FramesReport },
 };
 use sled_adapter::FeedStorage;
-use wca::wtools::Itertools;
+use wca::iter_tools::Itertools;
 
 #[ async_trait::async_trait( ?Send ) ]
 impl FeedStore for FeedStorage< SledStorage >
diff --git a/module/move/unitore/src/sled_adapter/frame.rs b/module/move/unitore/src/sled_adapter/frame.rs
index 43eccb8d8c..9bdaf2792d 100644
--- a/module/move/unitore/src/sled_adapter/frame.rs
+++ b/module/move/unitore/src/sled_adapter/frame.rs
@@ -2,7 +2,7 @@
 
 use crate::*;
 use std::collections::HashMap;
-use error_tools::{ Result, untyped::Context };
+use error_tools::{ untyped::Result, untyped::Context };
 use gluesql::
 {
   core::
@@ -16,7 +16,7 @@ use gluesql::
 use entity::frame::{ FrameStore, Frame };
 use action::frame::{ SelectedEntries, FramesReport, ListReport };
 use sled_adapter::FeedStorage;
-use wca::wtools::Itertools;
+use wca::iter_tools::Itertools;
 
 #[ async_trait::async_trait( ?Send ) ]
 impl FrameStore for FeedStorage< SledStorage >
diff --git a/module/move/unitore/src/sled_adapter/mod.rs b/module/move/unitore/src/sled_adapter/mod.rs
index a07c44d942..9c63972e9e 100644
--- a/module/move/unitore/src/sled_adapter/mod.rs
+++ b/module/move/unitore/src/sled_adapter/mod.rs
@@ -2,7 +2,7 @@
 
 use crate::*;
 use std::sync::Arc;
-use error_tools::{ untyped::Context, Result };
+use error_tools::{ untyped::Context, untyped::Result };
 use tokio::sync::Mutex;
 use gluesql::
 {
diff --git a/module/move/unitore/src/sled_adapter/table.rs b/module/move/unitore/src/sled_adapter/table.rs
index 71763918ee..8acfd1001e 100644
--- a/module/move/unitore/src/sled_adapter/table.rs
+++ b/module/move/unitore/src/sled_adapter/table.rs
@@ -1,7 +1,7 @@
 //! Table and columns info operations from Sled storage.
 
 use crate::*;
-use error_tools::Result;
+use error_tools::untyped::Result;
 use gluesql::
 {
   core::executor::Payload,
diff --git a/module/move/unitore/tests/basic.rs b/module/move/unitore/tests/basic.rs
index 6e5df1ad4d..c14f8f278b 100644
--- a/module/move/unitore/tests/basic.rs
+++ b/module/move/unitore/tests/basic.rs
@@ -1,5 +1,5 @@
 use feed_rs::parser as feed_parser;
-use error_tools::Result;
+use error_tools::untyped::Result;
 
 #[ tokio::test ]
 async fn frame() -> Result< () >
diff --git a/module/move/unitore/tests/config_add.rs b/module/move/unitore/tests/config_add.rs
index 455a77dbd4..7f080622b8 100644
--- a/module/move/unitore/tests/config_add.rs
+++ b/module/move/unitore/tests/config_add.rs
@@ -6,7 +6,7 @@ use unitore::
   entity::feed::FeedStore,
   action::config,
 };
-use error_tools::Result;
+use error_tools::untyped::Result;
 
 #[ tokio::test ]
 async fn config_add() -> Result< () >
diff --git a/module/move/unitore/tests/config_delete.rs b/module/move/unitore/tests/config_delete.rs
index 63a792725e..9a7ffdf10a 100644
--- a/module/move/unitore/tests/config_delete.rs
+++ b/module/move/unitore/tests/config_delete.rs
@@ -9,7 +9,7 @@ use unitore::
   entity::config::ConfigStore,
   action::config,
 };
-use error_tools::Result;
+use error_tools::untyped::Result;
 
 #[ tokio::test ]
 async fn config_delete() -> Result< () >
diff --git a/module/move/unitore/tests/frames_download.rs b/module/move/unitore/tests/frames_download.rs
index ae8119a71d..11494838f9 100644
--- a/module/move/unitore/tests/frames_download.rs
+++ b/module/move/unitore/tests/frames_download.rs
@@ -8,14 +8,14 @@ use gluesql::
   },
   sled_storage::sled::Config,
 };
-use wca::wtools::Itertools;
+use wca::iter_tools::Itertools;
 use unitore::
 {
   feed_config::SubscriptionConfig,
   sled_adapter::FeedStorage,
   entity::{ frame::FrameStore, feed::FeedStore },
 };
-use error_tools::Result;
+use error_tools::untyped::Result;
 
 #[ tokio::test ]
 async fn test_save() -> Result< () >
diff --git a/module/move/unitore/tests/query_execute.rs b/module/move/unitore/tests/query_execute.rs
index 7741575322..4215971781 100644
--- a/module/move/unitore/tests/query_execute.rs
+++ b/module/move/unitore/tests/query_execute.rs
@@ -14,7 +14,7 @@ use gluesql::
   sled_storage::sled,
 };
 use wca::{ VerifiedCommand, CommandsAggregator, Type, Parser, Dictionary, Verifier, Executor };
-use error_tools::Result;
+use error_tools::untyped::Result;
 use mockall::predicate;
 use std::path::PathBuf;
 
diff --git a/module/move/unitore/tests/table_list.rs b/module/move/unitore/tests/table_list.rs
index 188d1a3131..ff06deae00 100644
--- a/module/move/unitore/tests/table_list.rs
+++ b/module/move/unitore/tests/table_list.rs
@@ -8,7 +8,7 @@ use unitore::
   sled_adapter::FeedStorage,
   entity::table::TableStore,
 };
-use error_tools::Result;
+use error_tools::untyped::Result;
 
 #[ tokio::test ]
 async fn table_list() -> Result< () >
diff --git a/module/move/unitore/tests/tables_list.rs b/module/move/unitore/tests/tables_list.rs
index 0972041704..f740e94b08 100644
--- a/module/move/unitore/tests/tables_list.rs
+++ b/module/move/unitore/tests/tables_list.rs
@@ -4,7 +4,7 @@ use unitore::
   sled_adapter::FeedStorage,
   entity::table::TableStore,
 };
-use error_tools::Result;
+use error_tools::untyped::Result;
 
 #[ tokio::test ]
 async fn tables_list() -> Result< () >