git.delta.rocks / unique-network / refs/commits / 9e6c0bc65705

--- a/pallets/nft/src/lib.rs
+++ b/pallets/nft/src/lib.rs
@@ -54,6 +54,7 @@
 mod default_weights;
 
 pub const MAX_DECIMAL_POINTS: DecimalPoints = 30;
+pub const MAX_REFUNGIBLE_PIECES: u128 = 1_000_000_000_000_000_000_000;
 pub const MAX_SPONSOR_TIMEOUT: u32 = 10_368_000;
 pub const MAX_TOKEN_OWNERSHIP: u32 = 10_000_000;
 
@@ -71,8 +72,7 @@
     NFT,
     // decimal points
     Fungible(DecimalPoints),
-    // decimal points
-    ReFungible(DecimalPoints),
+    ReFungible,
 }
 
 impl Default for CollectionMode {
@@ -87,7 +87,7 @@
             CollectionMode::Invalid => 0,
             CollectionMode::NFT => 1,
             CollectionMode::Fungible(_) => 2,
-            CollectionMode::ReFungible(_) => 3,
+            CollectionMode::ReFungible => 3,
         }
     }
 }
@@ -271,6 +271,7 @@
 pub struct CreateReFungibleData {
     pub const_data: Vec<u8>,
     pub variable_data: Vec<u8>,
+    pub pieces: u128,
 }
 
 #[derive(Encode, Decode, Debug, Clone, PartialEq)]
@@ -382,7 +383,9 @@
         /// Collection limit bounds per collection exceeded
         CollectionLimitBoundsExceeded,
         /// Schema data size limit bound exceeded
-        SchemaDataLimitExceeded
+        SchemaDataLimitExceeded,
+        /// Maximum refungibility exceeded
+        WrongRefungiblePieces
 	}
 }
 
@@ -553,7 +556,6 @@
 
             let decimal_points = match mode {
                 CollectionMode::Fungible(points) => points,
-                CollectionMode::ReFungible(points) => points,
                 _ => 0
             };
 
@@ -938,7 +940,7 @@
 
             Self::can_create_items_in_collection(collection_id, &target_collection, &sender, &owner)?;
             Self::validate_create_item_args(&target_collection, &data)?;
-            Self::create_item_no_validation(collection_id, &target_collection, owner, data)?;
+            Self::create_item_no_validation(collection_id, owner, data)?;
 
             Ok(())
         }
@@ -978,7 +980,7 @@
                 Self::validate_create_item_args(&target_collection, data)?;
             }
             for data in &items_data {
-                Self::create_item_no_validation(collection_id, &target_collection, owner.clone(), data.clone())?;
+                Self::create_item_no_validation(collection_id, owner.clone(), data.clone())?;
             }
 
             Ok(())
@@ -1017,7 +1019,7 @@
             {
                 CollectionMode::NFT => Self::burn_nft_item(collection_id, item_id)?,
                 CollectionMode::Fungible(_)  => Self::burn_fungible_item(&sender, collection_id, value)?,
-                CollectionMode::ReFungible(_)  => Self::burn_refungible_item(collection_id, item_id, &sender)?,
+                CollectionMode::ReFungible  => Self::burn_refungible_item(collection_id, item_id, &sender)?,
                 _ => ()
             };
 
@@ -1159,7 +1161,7 @@
             {
                 CollectionMode::NFT => Self::transfer_nft(collection_id, item_id, from, recipient)?,
                 CollectionMode::Fungible(_)  => Self::transfer_fungible(collection_id, value, &from, &recipient)?,
-                CollectionMode::ReFungible(_)  => Self::transfer_refungible(collection_id, item_id, value, from.clone(), recipient)?,
+                CollectionMode::ReFungible  => Self::transfer_refungible(collection_id, item_id, value, from.clone(), recipient)?,
                 _ => ()
             };
 
@@ -1216,7 +1218,7 @@
             match target_collection.mode
             {
                 CollectionMode::NFT => Self::set_nft_variable_data(collection_id, item_id, data)?,
-                CollectionMode::ReFungible(_)  => Self::set_re_fungible_variable_data(collection_id, item_id, data)?,
+                CollectionMode::ReFungible  => Self::set_re_fungible_variable_data(collection_id, item_id, data)?,
                 CollectionMode::Fungible(_) => fail!(Error::<T>::CantStoreMetadataInFungibleTokens),
                 _ => fail!(Error::<T>::UnexpectedCollectionType)
             };
@@ -1556,7 +1558,7 @@
         {
             CollectionMode::NFT => Self::transfer_nft(collection_id, item_id, sender.clone(), recipient)?,
             CollectionMode::Fungible(_)  => Self::transfer_fungible(collection_id, value, &sender, &recipient)?,
-            CollectionMode::ReFungible(_)  => Self::transfer_refungible(collection_id, item_id, value, sender.clone(), recipient)?,
+            CollectionMode::ReFungible  => Self::transfer_refungible(collection_id, item_id, value, sender.clone(), recipient)?,
             _ => ()
         };
 
@@ -1608,12 +1610,16 @@
                     fail!(Error::<T>::NotFungibleDataUsedToMintFungibleCollectionToken);
                 }
             },
-            CollectionMode::ReFungible(_) => {
+            CollectionMode::ReFungible => {
                 if let CreateItemData::ReFungible(data) = data {
 
                     // check sizes
                     ensure!(ChainLimit::get().custom_data_limit >= data.const_data.len() as u32, Error::<T>::TokenConstDataLimitExceeded);
                     ensure!(ChainLimit::get().custom_data_limit >= data.variable_data.len() as u32, Error::<T>::TokenVariableDataLimitExceeded);
+
+                    // Check refungibility limits
+                    ensure!(data.pieces <= MAX_REFUNGIBLE_PIECES, Error::<T>::WrongRefungiblePieces);
+                    ensure!(data.pieces > 0, Error::<T>::WrongRefungiblePieces);
                 } else {
                     fail!(Error::<T>::NotReFungibleDataUsedToMintReFungibleCollectionToken);
                 }
@@ -1624,7 +1630,7 @@
         Ok(())
     }
 
-    fn create_item_no_validation(collection_id: CollectionId, collection: &CollectionType<T::AccountId>, owner: T::AccountId, data: CreateItemData) -> DispatchResult {
+    fn create_item_no_validation(collection_id: CollectionId, owner: T::AccountId, data: CreateItemData) -> DispatchResult {
         match data
         {
             CreateItemData::NFT(data) => {
@@ -1641,8 +1647,7 @@
             },
             CreateItemData::ReFungible(data) => {
                 let mut owner_list = Vec::new();
-                let value = (10 as u128).pow(collection.decimal_points as u32);
-                owner_list.push(Ownership {owner: owner.clone(), fraction: value});
+                owner_list.push(Ownership {owner: owner.clone(), fraction: data.pieces});
 
                 let item = ReFungibleItemType {
                     owner: owner_list,
@@ -1871,7 +1876,7 @@
             CollectionMode::Fungible(_) => {
                 <FungibleItemList<T>>::contains_key(collection_id, &subject)
             }
-            CollectionMode::ReFungible(_) => {
+            CollectionMode::ReFungible => {
                 <ReFungibleItemList<T>>::get(collection_id, item_id)
                     .owner
                     .iter()
@@ -1900,7 +1905,7 @@
         {
             CollectionMode::NFT => <NftItemList<T>>::contains_key(collection_id, item_id),
             CollectionMode::Fungible(_)  => <FungibleItemList<T>>::contains_key(collection_id, owner),
-            CollectionMode::ReFungible(_)  => <ReFungibleItemList<T>>::contains_key(collection_id, item_id),
+            CollectionMode::ReFungible  => <ReFungibleItemList<T>>::contains_key(collection_id, item_id),
             _ => false
         };
 
@@ -2426,7 +2431,7 @@
 
                             sponsored
                         }
-                        CollectionMode::ReFungible(_) => {
+                        CollectionMode::ReFungible => {
     
                             // get correct limit
                             let limit: u32 = if collection_limits.sponsor_transfer_timeout > 0 {

--- a/pallets/nft/src/tests.rs
+++ b/pallets/nft/src/tests.rs
@@ -35,7 +35,7 @@
 }
 
 fn default_re_fungible_data () -> CreateReFungibleData {
-    CreateReFungibleData { const_data: vec![1, 2, 3], variable_data: vec![3, 2, 1] }
+    CreateReFungibleData { const_data: vec![1, 2, 3], variable_data: vec![3, 2, 1], pieces: 1023 }
 }
 
 fn create_test_collection_for_owner(mode: &CollectionMode, owner: u64, id: CollectionId) -> CollectionId {
@@ -114,26 +114,6 @@
 }
 
 #[test]
-fn create_re_fungible_collection_fails_with_large_decimal_numbers() {
-    new_test_ext().execute_with(|| {
-        default_limits();
-
-        let col_name1: Vec<u16> = "Test1\0".encode_utf16().collect::<Vec<u16>>();
-        let col_desc1: Vec<u16> = "TestDescription1\0".encode_utf16().collect::<Vec<u16>>();
-        let token_prefix1: Vec<u8> = b"token_prefix1\0".to_vec();
-
-        let origin1 = Origin::signed(1);
-        assert_noop!(TemplateModule::create_collection(
-            origin1,
-            col_name1,
-            col_desc1,
-            token_prefix1,
-            CollectionMode::ReFungible(MAX_DECIMAL_POINTS + 1)
-        ), Error::<Test>::CollectionDecimalPointLimitExceeded);
-    });
-}
-
-#[test]
 fn create_nft_item() {
     new_test_ext().execute_with(|| {
         default_limits();
@@ -176,7 +156,7 @@
 fn create_refungible_item() {
     new_test_ext().execute_with(|| {
         default_limits();
-        let collection_id = create_test_collection(&CollectionMode::ReFungible(3), 1);
+        let collection_id = create_test_collection(&CollectionMode::ReFungible, 1);
 
         let data = default_re_fungible_data();
         create_test_item(collection_id, &data.clone().into());
@@ -192,7 +172,7 @@
             TemplateModule::refungible_item_id(collection_id, 1).owner[0],
             Ownership {
                 owner: 1,
-                fraction: 1000
+                fraction: 1023
             }
         );
     });
@@ -203,7 +183,7 @@
     new_test_ext().execute_with(|| {
         default_limits();
         
-        create_test_collection(&CollectionMode::ReFungible(3), 1);
+        create_test_collection(&CollectionMode::ReFungible, 1);
 
         let origin1 = Origin::signed(1);
 
@@ -224,7 +204,7 @@
                 item.owner[0],
                 Ownership {
                     owner: 1,
-                    fraction: 1000
+                    fraction: 1023
                 }
             );
         }
@@ -312,7 +292,7 @@
     new_test_ext().execute_with(|| {
         default_limits();
         
-        let collection_id = create_test_collection(&CollectionMode::ReFungible(3), 1);
+        let collection_id = create_test_collection(&CollectionMode::ReFungible, 1);
 
         let data = default_re_fungible_data();
         create_test_item(collection_id, &data.clone().into());
@@ -331,23 +311,23 @@
             TemplateModule::refungible_item_id(collection_id, 1).owner[0],
             Ownership {
                 owner: 1,
-                fraction: 1000
+                fraction: 1023
             }
         );
-        assert_eq!(TemplateModule::balance_count(1, 1), 1000);
+        assert_eq!(TemplateModule::balance_count(1, 1), 1023);
         assert_eq!(TemplateModule::address_tokens(1, 1), [1]);
 
         // change owner scenario
-        assert_ok!(TemplateModule::transfer(origin1.clone(), 2, 1, 1, 1000));
+        assert_ok!(TemplateModule::transfer(origin1.clone(), 2, 1, 1, 1023));
         assert_eq!(
             TemplateModule::refungible_item_id(1, 1).owner[0],
             Ownership {
                 owner: 2,
-                fraction: 1000
+                fraction: 1023
             }
         );
         assert_eq!(TemplateModule::balance_count(1, 1), 0);
-        assert_eq!(TemplateModule::balance_count(1, 2), 1000);
+        assert_eq!(TemplateModule::balance_count(1, 2), 1023);
         // assert_eq!(TemplateModule::address_tokens(1, 1), []);
         assert_eq!(TemplateModule::address_tokens(1, 2), [1]);
 
@@ -357,7 +337,7 @@
             TemplateModule::refungible_item_id(1, 1).owner[0],
             Ownership {
                 owner: 2,
-                fraction: 500
+                fraction: 523
             }
         );
         assert_eq!(
@@ -367,7 +347,7 @@
                 fraction: 500
             }
         );
-        assert_eq!(TemplateModule::balance_count(1, 2), 500);
+        assert_eq!(TemplateModule::balance_count(1, 2), 523);
         assert_eq!(TemplateModule::balance_count(1, 3), 500);
         assert_eq!(TemplateModule::address_tokens(1, 2), [1]);
         assert_eq!(TemplateModule::address_tokens(1, 3), [1]);
@@ -378,7 +358,7 @@
             TemplateModule::refungible_item_id(1, 1).owner[0],
             Ownership {
                 owner: 2,
-                fraction: 300
+                fraction: 323
             }
         );
         assert_eq!(
@@ -388,7 +368,7 @@
                 fraction: 700
             }
         );
-        assert_eq!(TemplateModule::balance_count(1, 2), 300);
+        assert_eq!(TemplateModule::balance_count(1, 2), 323);
         assert_eq!(TemplateModule::balance_count(1, 3), 700);
         assert_eq!(TemplateModule::address_tokens(1, 2), [1]);
         assert_eq!(TemplateModule::address_tokens(1, 3), [1]);
@@ -517,7 +497,7 @@
     new_test_ext().execute_with(|| {
         default_limits();
         
-        let collection_id = create_test_collection(&CollectionMode::ReFungible(3), 1);
+        let collection_id = create_test_collection(&CollectionMode::ReFungible, 1);
         
         let origin1 = Origin::signed(1);
         let origin2 = Origin::signed(2);
@@ -525,7 +505,7 @@
         let data = default_re_fungible_data();
         create_test_item(collection_id, &data.into());
 
-        assert_eq!(TemplateModule::balance_count(1, 1), 1000);
+        assert_eq!(TemplateModule::balance_count(1, 1), 1023);
         assert_eq!(TemplateModule::address_tokens(1, 1), [1]);
 
         assert_ok!(TemplateModule::set_mint_permission(
@@ -543,8 +523,8 @@
         assert_ok!(TemplateModule::add_to_white_list(origin1.clone(), 1, 3));
 
         // do approve
-        assert_ok!(TemplateModule::approve(origin1.clone(), 2, 1, 1, 1000));
-        assert_eq!(TemplateModule::approved(1, (1, 1, 2)), 1000);
+        assert_ok!(TemplateModule::approve(origin1.clone(), 2, 1, 1, 1023));
+        assert_eq!(TemplateModule::approved(1, (1, 1, 2)), 1023);
 
         assert_ok!(TemplateModule::transfer_from(
             origin2.clone(),
@@ -554,14 +534,14 @@
             1,
             100
         ));
-        assert_eq!(TemplateModule::balance_count(1, 1), 900);
+        assert_eq!(TemplateModule::balance_count(1, 1), 923);
         assert_eq!(TemplateModule::balance_count(1, 3), 100);
         assert_eq!(TemplateModule::address_tokens(1, 1), [1]);
         assert_eq!(TemplateModule::address_tokens(1, 3), [1]);
 
         assert_eq!(
             TemplateModule::approved(1, (1, 1, 2)),
-            900
+            923
         );
     });
 }
@@ -717,7 +697,7 @@
     new_test_ext().execute_with(|| {
         default_limits();
         
-        let collection_id = create_test_collection(&CollectionMode::ReFungible(3), 1);
+        let collection_id = create_test_collection(&CollectionMode::ReFungible, 1);
         let origin1 = Origin::signed(1);
 
         assert_ok!(TemplateModule::set_mint_permission(
@@ -738,12 +718,12 @@
         create_test_item(collection_id, &data.into());
 
         // check balance (collection with id = 1, user id = 2)
-        assert_eq!(TemplateModule::balance_count(1, 1), 1000);
+        assert_eq!(TemplateModule::balance_count(1, 1), 1023);
 
         // burn item
-        assert_ok!(TemplateModule::burn_item(origin1.clone(), 1, 1, 1000));
+        assert_ok!(TemplateModule::burn_item(origin1.clone(), 1, 1, 1023));
         assert_noop!(
-            TemplateModule::burn_item(origin1.clone(), 1, 1, 1000),
+            TemplateModule::burn_item(origin1.clone(), 1, 1, 1023),
             Error::<Test>::TokenNotFound
         );
 
@@ -807,7 +787,7 @@
         
         let nft_collection_id = create_test_collection(&CollectionMode::NFT, 1);
         let fungible_collection_id = create_test_collection(&CollectionMode::Fungible(3), 2);
-        let re_fungible_collection_id = create_test_collection(&CollectionMode::ReFungible(3), 3);
+        let re_fungible_collection_id = create_test_collection(&CollectionMode::ReFungible, 3);
         
         // check balance before
         assert_eq!(TemplateModule::balance_count(nft_collection_id, 1), 0);
@@ -826,7 +806,7 @@
         // check balance (collection with id = 1, user id = 1)
         assert_eq!(TemplateModule::balance_count(nft_collection_id, 1), 1);
         assert_eq!(TemplateModule::balance_count(fungible_collection_id, 1), 5);
-        assert_eq!(TemplateModule::balance_count(re_fungible_collection_id, 1), 1000);
+        assert_eq!(TemplateModule::balance_count(re_fungible_collection_id, 1), 1023);
         assert_eq!(TemplateModule::nft_item_id(nft_collection_id, 1).owner, 1);
         assert_eq!(TemplateModule::fungible_item_id(fungible_collection_id, 1).value, 5);
         assert_eq!(TemplateModule::refungible_item_id(re_fungible_collection_id, 1).owner[0].owner, 1);
@@ -1905,7 +1885,7 @@
     new_test_ext().execute_with(|| {
         default_limits();
 
-        let collection_id = create_test_collection(&CollectionMode::ReFungible(3), 1);
+        let collection_id = create_test_collection(&CollectionMode::ReFungible, 1);
 
         let origin1 = Origin::signed(1);
 
@@ -1982,7 +1962,7 @@
         }));
 
 
-        let collection_id = create_test_collection(&CollectionMode::ReFungible(3), 1);
+        let collection_id = create_test_collection(&CollectionMode::ReFungible, 1);
 
         let origin1 = Origin::signed(1);
 

--- a/runtime_types.json
+++ b/runtime_types.json
@@ -1,27 +1,4 @@
 {
-    "Schedule": {
-      "version": "u32",
-      "put_code_per_byte_cost": "Gas",
-      "grow_mem_cost": "Gas",
-      "regular_op_cost": "Gas",
-      "return_data_per_byte_cost": "Gas",
-      "event_data_per_byte_cost": "Gas",
-      "event_per_topic_cost": "Gas",
-      "event_base_cost": "Gas",
-      "call_base_cost": "Gas",
-      "instantiate_base_cost": "Gas",
-      "dispatch_base_cost": "Gas",
-      "sandbox_data_read_cost": "Gas",
-      "sandbox_data_write_cost": "Gas",
-      "transfer_cost": "Gas",
-      "instantiate_cost": "Gas",
-      "max_event_topics": "u32",
-      "max_stack_height": "u32",
-      "max_memory_pages": "u32",
-      "max_table_size": "u32",
-      "enable_println": "bool",
-      "max_subject_len": "u32"
-    },
     "AccessMode": {
       "_enum": [
         "Normal",
@@ -34,7 +11,7 @@
         "Invalid": null,
         "NFT": null,
         "Fungible": "DecimalPoints",
-        "ReFungible": "DecimalPoints"
+        "ReFungible": null
       }
     },
     "Ownership": {
@@ -84,7 +61,8 @@
     },
     "CreateReFungibleData": {
       "const_data": "Vec<u8>",
-      "variable_data": "Vec<u8>" 
+      "variable_data": "Vec<u8>",
+      "pieces": "u128"
     },
     "CreateItemData": {
       "_enum": {
@@ -120,14 +98,5 @@
       "SponsorTimeout": "u32",
       "OwnerCanTransfer": "bool",
       "OwnerCanDestroy": "bool"
-    },
-    "AccountInfo": "AccountInfoWithProviders",
-    "AccountInfoWithProviders": {
-      "nonce": "Index",
-      "consumers": "RefCount",
-      "providers": "RefCount",
-      "data": "AccountData"
     }
-
-  }
-  
\ No newline at end of file
+}
\ No newline at end of file

--- a/tests/src/addCollectionAdmin.test.ts
+++ b/tests/src/addCollectionAdmin.test.ts
@@ -1,4 +1,9 @@
-import { ApiPromise } from '@polkadot/api';
+//
+// This file is subject to the terms and conditions defined in
+// file 'LICENSE', which is part of this source code package.
+//
+
+import { ApiPromise } from '@polkadot/api';
 import BN from 'bn.js';
 import chai from 'chai';
 import chaiAsPromised from 'chai-as-promised';
@@ -98,7 +103,7 @@
     });
   });
 
-  it('Add an admin to a collection that has reached the maximum number of admins limit', async () => {
+  it.only('Add an admin to a collection that has reached the maximum number of admins limit', async () => {
     await usingApi(async (api: ApiPromise) => {
       const Alice = privateKey('//Alice');
       const accounts = [
@@ -112,8 +117,8 @@
       ];
       const collectionId = await createCollectionExpectSuccess();
 
-      const chainLimits: any = await api.query.nft.chainLimit();
-      const chainAdminLimit = chainLimits.CollectionAdminsLimit.toNumber();
+      const chainLimit = await api.query.nft.chainLimit() as unknown as { CollectionAdminsLimit: BN };
+      const chainAdminLimit = chainLimit.CollectionAdminsLimit.toNumber();
       expect(chainAdminLimit).to.be.equal(5);
 
       for (let i = 0; i < chainAdminLimit; i++) {

--- a/tests/src/addToContractWhiteList.test.ts
+++ b/tests/src/addToContractWhiteList.test.ts
@@ -1,3 +1,8 @@
+//
+// This file is subject to the terms and conditions defined in
+// file 'LICENSE', which is part of this source code package.
+//
+
 import chai from "chai";
 import chaiAsPromised from 'chai-as-promised';
 import usingApi, { submitTransactionAsync, submitTransactionExpectFailAsync } from "./substrate/substrate-api";

--- a/tests/src/addToWhiteList.test.ts
+++ b/tests/src/addToWhiteList.test.ts
@@ -1,3 +1,8 @@
+//
+// This file is subject to the terms and conditions defined in
+// file 'LICENSE', which is part of this source code package.
+//
+
 import { IKeyringPair } from '@polkadot/types/types';
 import chai from 'chai';
 import chaiAsPromised from 'chai-as-promised';

--- a/tests/src/approve.test.ts
+++ b/tests/src/approve.test.ts
@@ -34,7 +34,7 @@
       await approveExpectSuccess(fungibleCollectionId, newFungibleTokenId, Alice, Bob);
       // reFungible
       const reFungibleCollectionId =
-        await createCollectionExpectSuccess({mode: {type: 'ReFungible', decimalPoints: 0}});
+        await createCollectionExpectSuccess({mode: {type: 'ReFungible'}});
       const newReFungibleTokenId = await createItemExpectSuccess(Alice, reFungibleCollectionId, 'ReFungible');
       await approveExpectSuccess(reFungibleCollectionId, newReFungibleTokenId, Alice, Bob);
     });
@@ -56,7 +56,7 @@
       await approveExpectSuccess(fungibleCollectionId, newFungibleTokenId, Alice, Bob, 0);
       // reFungible
       const reFungibleCollectionId =
-        await createCollectionExpectSuccess({mode: {type: 'ReFungible', decimalPoints: 0}});
+        await createCollectionExpectSuccess({mode: {type: 'ReFungible'}});
       const newReFungibleTokenId = await createItemExpectSuccess(Alice, reFungibleCollectionId, 'ReFungible');
       await approveExpectSuccess(reFungibleCollectionId, newReFungibleTokenId, Alice, Bob, 1);
       await approveExpectSuccess(reFungibleCollectionId, newReFungibleTokenId, Alice, Bob, 0);
@@ -95,7 +95,7 @@
       await approveExpectFail(fungibleCollectionId, 1, Alice, Bob);
       // reFungible
       const reFungibleCollectionId =
-        await createCollectionExpectSuccess({mode: {type: 'ReFungible', decimalPoints: 0}});
+        await createCollectionExpectSuccess({mode: {type: 'ReFungible'}});
       await destroyCollectionExpectSuccess(reFungibleCollectionId);
       await approveExpectFail(reFungibleCollectionId, 1, Alice, Bob);
     });
@@ -113,7 +113,7 @@
       await approveExpectFail(fungibleCollectionId, 2, Alice, Bob);
       // reFungible
       const reFungibleCollectionId =
-        await createCollectionExpectSuccess({mode: {type: 'ReFungible', decimalPoints: 0}});
+        await createCollectionExpectSuccess({mode: {type: 'ReFungible'}});
       await approveExpectFail(reFungibleCollectionId, 2, Alice, Bob);
     });
   });
@@ -132,7 +132,7 @@
       await approveExpectFail(fungibleCollectionId, newFungibleTokenId, Bob, Alice);
       // reFungible
       const reFungibleCollectionId =
-        await createCollectionExpectSuccess({mode: {type: 'ReFungible', decimalPoints: 0}});
+        await createCollectionExpectSuccess({mode: {type: 'ReFungible'}});
       const newReFungibleTokenId = await createItemExpectSuccess(Alice, reFungibleCollectionId, 'ReFungible');
       await approveExpectFail(reFungibleCollectionId, newReFungibleTokenId, Bob, Alice);
     });

--- a/tests/src/burnItem.test.ts
+++ b/tests/src/burnItem.test.ts
@@ -1,3 +1,8 @@
+//
+// This file is subject to the terms and conditions defined in
+// file 'LICENSE', which is part of this source code package.
+//
+
 import { default as usingApi, submitTransactionAsync, submitTransactionExpectFailAsync } from './substrate/substrate-api';
 import { Keyring } from "@polkadot/api";
 import { IKeyringPair } from "@polkadot/types/types";
@@ -70,7 +75,7 @@
   });
   it('Burn item in ReFungible collection', async () => {
     const createMode = 'ReFungible';
-    const collectionId = await createCollectionExpectSuccess({mode: {type: createMode, decimalPoints: 2 }});
+    const collectionId = await createCollectionExpectSuccess({mode: {type: createMode }});
     const tokenId = await createItemExpectSuccess(alice, collectionId, createMode);
 
     await usingApi(async (api) => {
@@ -91,7 +96,7 @@
 
   it('Burn owned portion of item in ReFungible collection', async () => {
     const createMode = 'ReFungible';
-    const collectionId = await createCollectionExpectSuccess({mode: {type: createMode, decimalPoints: 2 }});
+    const collectionId = await createCollectionExpectSuccess({mode: {type: createMode}});
     const tokenId = await createItemExpectSuccess(alice, collectionId, createMode);
 
     await usingApi(async (api) => {
@@ -107,7 +112,7 @@
       const tx = api.tx.nft.burnItem(collectionId, tokenId, 0);
       const events2 = await submitTransactionAsync(bob, tx);
       const result2 = getGenericResult(events2);
-  
+
       // Get balances 
       const balance: any = (await api.query.nft.reFungibleItemList(collectionId, tokenId)).toJSON();
       // console.log(balance);

--- a/tests/src/change-collection-owner.test.ts
+++ b/tests/src/change-collection-owner.test.ts
@@ -1,4 +1,9 @@
-import chai from 'chai';
+//
+// This file is subject to the terms and conditions defined in
+// file 'LICENSE', which is part of this source code package.
+//
+
+import chai from 'chai';
 import chaiAsPromised from 'chai-as-promised';
 import privateKey from './substrate/privateKey';
 import { default as usingApi, submitTransactionAsync, submitTransactionExpectFailAsync } from "./substrate/substrate-api";

--- a/tests/src/confirmSponsorship.test.ts
+++ b/tests/src/confirmSponsorship.test.ts
@@ -115,7 +115,7 @@
   });
 
   it('ReFungible: Transfer fees are paid by the sponsor after confirmation', async () => {
-    const collectionId = await createCollectionExpectSuccess({mode: {type: 'ReFungible', decimalPoints: 0 }});
+    const collectionId = await createCollectionExpectSuccess({mode: {type: 'ReFungible'}});
     await setCollectionSponsorExpectSuccess(collectionId, bob.address);
     await confirmSponsorshipExpectSuccess(collectionId, '//Bob');
 
@@ -247,7 +247,7 @@
   });
 
   it('ReFungible: Sponsoring is rate limited', async () => {
-    const collectionId = await createCollectionExpectSuccess({mode: {type: 'ReFungible', decimalPoints: 0 }});
+    const collectionId = await createCollectionExpectSuccess({mode: {type: 'ReFungible'}});
     await setCollectionSponsorExpectSuccess(collectionId, bob.address);
     await confirmSponsorshipExpectSuccess(collectionId, '//Bob');
 

--- a/tests/src/contracts.test.ts
+++ b/tests/src/contracts.test.ts
@@ -1,3 +1,8 @@
+//
+// This file is subject to the terms and conditions defined in
+// file 'LICENSE', which is part of this source code package.
+//
+
 import chai from "chai";
 import chaiAsPromised from 'chai-as-promised';
 import usingApi, { submitTransactionAsync, submitTransactionExpectFailAsync } from "./substrate/substrate-api";

--- a/tests/src/createCollection.test.ts
+++ b/tests/src/createCollection.test.ts
@@ -28,7 +28,7 @@
     await createCollectionExpectSuccess({mode: {type: 'Fungible', decimalPoints: 0}});
   });
   it('Create new ReFungible collection', async () => {
-    await createCollectionExpectSuccess({mode: {type: 'ReFungible', decimalPoints: 0}});
+    await createCollectionExpectSuccess({mode: {type: 'ReFungible'}});
   });
 });
 

--- a/tests/src/createItem.test.ts
+++ b/tests/src/createItem.test.ts
@@ -1,3 +1,8 @@
+//
+// This file is subject to the terms and conditions defined in
+// file 'LICENSE', which is part of this source code package.
+//
+
 import { default as usingApi } from './substrate/substrate-api';
 import { Keyring } from "@polkadot/api";
 import { IKeyringPair } from "@polkadot/types/types";
@@ -28,7 +33,7 @@
   });
   it('Create new item in ReFungible collection', async () => {
     const createMode = 'ReFungible';
-    const newCollectionID = await createCollectionExpectSuccess({mode: {type: createMode, decimalPoints: 0}});
+    const newCollectionID = await createCollectionExpectSuccess({mode: {type: createMode}});
     await createItemExpectSuccess(alice, newCollectionID, createMode);
   });
 });

--- a/tests/src/createMultipleItems.test.ts
+++ b/tests/src/createMultipleItems.test.ts
@@ -56,14 +56,14 @@
 
   it('Create  0x31, 0x32, 0x33 items in active ReFungible collection and verify tokens data in chain', async () => {
     await usingApi(async (api: ApiPromise) => {
-      const collectionId = await createCollectionExpectSuccess({mode: {type: 'ReFungible', decimalPoints: 0}});
+      const collectionId = await createCollectionExpectSuccess({mode: {type: 'ReFungible'}});
       const itemsListIndexBefore = await api.query.nft.itemListIndex(collectionId) as unknown as BN;
       expect(itemsListIndexBefore.toNumber()).to.be.equal(0);
       const Alice = privateKey('//Alice');
       const args = [
-        { Refungible: ['0x31', '0x31'] },
-        { Refungible: ['0x32', '0x32'] },
-        { Refungible: ['0x33', '0x33'] },
+        {refungible: {const_data: [0x31], variable_data: [0x31], pieces: 1}},
+        {refungible: {const_data: [0x32], variable_data: [0x32], pieces: 1}},
+        {refungible: {const_data: [0x33], variable_data: [0x33], pieces: 1}},
       ];
       const createMultipleItemsTx = await api.tx.nft
         .createMultipleItems(collectionId, Alice.address, args);
@@ -137,7 +137,7 @@
 
       // ReFungible
       const collectionIdReFungible =
-        await createCollectionExpectSuccess({mode: {type: 'ReFungible', decimalPoints: 0}});
+        await createCollectionExpectSuccess({mode: {type: 'ReFungible'}});
       const argsReFungible = [
         { ReFungible: ['1'.repeat(2049), '1'.repeat(2049)] },
         { ReFungible: ['2'.repeat(2049), '2'.repeat(2049)] },

--- a/tests/src/destroyCollection.test.ts
+++ b/tests/src/destroyCollection.test.ts
@@ -1,12 +1,14 @@
+//
+// This file is subject to the terms and conditions defined in
+// file 'LICENSE', which is part of this source code package.
+//
+
 import chai from 'chai';
 import chaiAsPromised from 'chai-as-promised';
-import { default as usingApi, submitTransactionAsync } from "./substrate/substrate-api";
-import { createCollectionExpectSuccess, createCollectionExpectFailure, destroyCollectionExpectSuccess, destroyCollectionExpectFailure } from "./util/helpers";
-import type { AccountId, EventRecord } from '@polkadot/types/interfaces';
-import privateKey from './substrate/privateKey';
+import { default as usingApi } from "./substrate/substrate-api";
+import { createCollectionExpectSuccess, destroyCollectionExpectSuccess, destroyCollectionExpectFailure } from "./util/helpers";
 
 chai.use(chaiAsPromised);
-const expect = chai.expect;
 
 describe('integration test: ext. destroyCollection():', () => {
   it('NFT collection can be destroyed', async () => {
@@ -18,7 +20,7 @@
     await destroyCollectionExpectSuccess(collectionId);
   });
   it('ReFungible collection can be destroyed', async () => {
-    const collectionId = await createCollectionExpectSuccess({mode: {type: 'ReFungible', decimalPoints: 0}});
+    const collectionId = await createCollectionExpectSuccess({mode: {type: 'ReFungible'}});
     await destroyCollectionExpectSuccess(collectionId);
   });
 });

--- a/tests/src/enableContractSponsoring.test.ts
+++ b/tests/src/enableContractSponsoring.test.ts
@@ -1,3 +1,8 @@
+//
+// This file is subject to the terms and conditions defined in
+// file 'LICENSE', which is part of this source code package.
+//
+
 import { IKeyringPair } from '@polkadot/types/types';
 import chai from 'chai';
 import chaiAsPromised from 'chai-as-promised';

--- a/tests/src/removeCollectionAdmin.test.ts
+++ b/tests/src/removeCollectionAdmin.test.ts
@@ -1,5 +1,9 @@
+//
+// This file is subject to the terms and conditions defined in
+// file 'LICENSE', which is part of this source code package.
+//
+
 import { ApiPromise } from '@polkadot/api';
-import BN from 'bn.js';
 import chai from 'chai';
 import chaiAsPromised from 'chai-as-promised';
 import privateKey from './substrate/privateKey';

--- a/tests/src/removeFromWhiteList.test.ts
+++ b/tests/src/removeFromWhiteList.test.ts
@@ -1,3 +1,8 @@
+//
+// This file is subject to the terms and conditions defined in
+// file 'LICENSE', which is part of this source code package.
+//
+
 import chai from 'chai';
 import chaiAsPromised from 'chai-as-promised';
 import { default as usingApi } from './substrate/substrate-api';

--- a/tests/src/setCollectionLimits.test.ts
+++ b/tests/src/setCollectionLimits.test.ts
@@ -1,3 +1,8 @@
+//
+// This file is subject to the terms and conditions defined in
+// file 'LICENSE', which is part of this source code package.
+//
+
 // https://unique-network.readthedocs.io/en/latest/jsapi.html#setchainlimits
 import { ApiPromise, Keyring } from '@polkadot/api';
 import { IKeyringPair } from '@polkadot/types/types';

--- a/tests/src/setCollectionSponsor.test.ts
+++ b/tests/src/setCollectionSponsor.test.ts
@@ -9,7 +9,6 @@
 import { createCollectionExpectSuccess, setCollectionSponsorExpectSuccess, destroyCollectionExpectSuccess, setCollectionSponsorExpectFailure } from "./util/helpers";
 import { Keyring } from "@polkadot/api";
 import { IKeyringPair } from "@polkadot/types/types";
-import type { AccountId } from '@polkadot/types/interfaces';
 
 chai.use(chaiAsPromised);
 const expect = chai.expect;
@@ -34,7 +33,7 @@
     await setCollectionSponsorExpectSuccess(collectionId, bob.address);
   });
   it('Set ReFungible collection sponsor', async () => {
-    const collectionId = await createCollectionExpectSuccess({ mode: {type: 'ReFungible', decimalPoints: 0} });
+    const collectionId = await createCollectionExpectSuccess({ mode: {type: 'ReFungible'} });
     await setCollectionSponsorExpectSuccess(collectionId, bob.address);
   });
 

--- a/tests/src/setConstOnChainSchema.test.ts
+++ b/tests/src/setConstOnChainSchema.test.ts
@@ -1,3 +1,8 @@
+//
+// This file is subject to the terms and conditions defined in
+// file 'LICENSE', which is part of this source code package.
+//
+
 import { Keyring } from '@polkadot/api';
 import { IKeyringPair } from '@polkadot/types/types';
 import chai from 'chai';

--- a/tests/src/setContractSponsoringRateLimit.test.ts
+++ b/tests/src/setContractSponsoringRateLimit.test.ts
@@ -1,3 +1,8 @@
+//
+// This file is subject to the terms and conditions defined in
+// file 'LICENSE', which is part of this source code package.
+//
+
 import { IKeyringPair } from '@polkadot/types/types';
 import privateKey from './substrate/privateKey';
 import usingApi from './substrate/substrate-api';

--- a/tests/src/setMintPermission.test.ts
+++ b/tests/src/setMintPermission.test.ts
@@ -1,3 +1,8 @@
+//
+// This file is subject to the terms and conditions defined in
+// file 'LICENSE', which is part of this source code package.
+//
+
 import { IKeyringPair } from '@polkadot/types/types';
 import privateKey from './substrate/privateKey';
 import usingApi from './substrate/substrate-api';

--- a/tests/src/setPublicAccessMode.test.ts
+++ b/tests/src/setPublicAccessMode.test.ts
@@ -1,3 +1,8 @@
+//
+// This file is subject to the terms and conditions defined in
+// file 'LICENSE', which is part of this source code package.
+//
+
 // https://unique-network.readthedocs.io/en/latest/jsapi.html#setschemaversion
 import { ApiPromise, Keyring } from '@polkadot/api';
 import { IKeyringPair } from '@polkadot/types/types';

--- a/tests/src/setSchemaVersion.test.ts
+++ b/tests/src/setSchemaVersion.test.ts
@@ -1,7 +1,11 @@
+//
+// This file is subject to the terms and conditions defined in
+// file 'LICENSE', which is part of this source code package.
+//
+
 // https://unique-network.readthedocs.io/en/latest/jsapi.html#setschemaversion
 import { ApiPromise, Keyring } from '@polkadot/api';
 import { IKeyringPair } from '@polkadot/types/types';
-import BN from 'bn.js';
 import chai from 'chai';
 import chaiAsPromised from 'chai-as-promised';
 import usingApi, {submitTransactionAsync, submitTransactionExpectFailAsync} from './substrate/substrate-api';

--- a/tests/src/setVariableMetaData.test.ts
+++ b/tests/src/setVariableMetaData.test.ts
@@ -1,3 +1,8 @@
+//
+// This file is subject to the terms and conditions defined in
+// file 'LICENSE', which is part of this source code package.
+//
+
 import { IKeyringPair } from '@polkadot/types/types';
 import chai from 'chai';
 import chaiAsPromised from 'chai-as-promised';

--- a/tests/src/setVariableOnChainSchema.test.ts
+++ b/tests/src/setVariableOnChainSchema.test.ts
@@ -1,3 +1,8 @@
+//
+// This file is subject to the terms and conditions defined in
+// file 'LICENSE', which is part of this source code package.
+//
+
 import { Keyring } from '@polkadot/api';
 import { IKeyringPair } from '@polkadot/types/types';
 import chai from 'chai';

--- a/tests/src/toggleContractWhiteList.test.ts
+++ b/tests/src/toggleContractWhiteList.test.ts
@@ -1,3 +1,8 @@
+//
+// This file is subject to the terms and conditions defined in
+// file 'LICENSE', which is part of this source code package.
+//
+
 import chai from "chai";
 import chaiAsPromised from 'chai-as-promised';
 import usingApi, { submitTransactionAsync, submitTransactionExpectFailAsync } from "./substrate/substrate-api";

--- a/tests/src/transfer.test.ts
+++ b/tests/src/transfer.test.ts
@@ -63,7 +63,7 @@
     });
   });
 
-  it('Create collection, balance transfers and check balance', async () => {
+  it('User can transfer owned token', async () => {
     await usingApi(async (api) => {
       const Alice = privateKey('//Alice');
       const Bob = privateKey('//Bob');
@@ -77,10 +77,10 @@
       await transferExpectSuccess(fungibleCollectionId, newFungibleTokenId, Alice, Bob, 1, 'Fungible');
       // reFungible
       const reFungibleCollectionId = await
-        createCollectionExpectSuccess({mode: {type: 'ReFungible', decimalPoints: 0}});
+        createCollectionExpectSuccess({mode: {type: 'ReFungible'}});
       const newReFungibleTokenId = await createItemExpectSuccess(Alice, reFungibleCollectionId, 'ReFungible');
       await transferExpectSuccess(reFungibleCollectionId,
-        newReFungibleTokenId, Alice, Bob, 1, 'ReFungible');
+        newReFungibleTokenId, Alice, Bob, 100, 'ReFungible');
     });
   });
 });
@@ -119,7 +119,7 @@
     await transferExpectFail(fungibleCollectionId, newFungibleTokenId, Alice, Bob, 1, 'Fungible');
     // reFungible
     const reFungibleCollectionId = await
-      createCollectionExpectSuccess({mode: {type: 'ReFungible', decimalPoints: 0}});
+      createCollectionExpectSuccess({mode: {type: 'ReFungible'}});
     const newReFungibleTokenId = await createItemExpectSuccess(Alice, reFungibleCollectionId, 'ReFungible');
     await destroyCollectionExpectSuccess(reFungibleCollectionId);
     await transferExpectFail(reFungibleCollectionId,
@@ -134,7 +134,7 @@
     await transferExpectFail(fungibleCollectionId, 2, Alice, Bob, 1, 'Fungible');
     // reFungible
     const reFungibleCollectionId = await
-      createCollectionExpectSuccess({mode: {type: 'ReFungible', decimalPoints: 0}});
+      createCollectionExpectSuccess({mode: {type: 'ReFungible'}});
     await transferExpectFail(reFungibleCollectionId,
       2, Alice, Bob, 1, 'ReFungible');
   });
@@ -151,7 +151,7 @@
     await transferExpectFail(fungibleCollectionId, newFungibleTokenId, Alice, Bob, 1, 'Fungible');
     // reFungible
     const reFungibleCollectionId = await
-      createCollectionExpectSuccess({mode: {type: 'ReFungible', decimalPoints: 0}});
+      createCollectionExpectSuccess({mode: {type: 'ReFungible'}});
     const newReFungibleTokenId = await createItemExpectSuccess(Alice, reFungibleCollectionId, 'ReFungible');
     await burnItemExpectSuccess(Alice, reFungibleCollectionId, newReFungibleTokenId, 1);
     await transferExpectFail(reFungibleCollectionId,
@@ -168,7 +168,7 @@
     await transferExpectFail(fungibleCollectionId, newFungibleTokenId, Charlie, Bob, 1, 'Fungible');
     // reFungible
     const reFungibleCollectionId = await
-      createCollectionExpectSuccess({mode: {type: 'ReFungible', decimalPoints: 0}});
+      createCollectionExpectSuccess({mode: {type: 'ReFungible'}});
     const newReFungibleTokenId = await createItemExpectSuccess(Alice, reFungibleCollectionId, 'ReFungible');
     await transferExpectFail(reFungibleCollectionId,
       newReFungibleTokenId, Charlie, Bob, 1, 'ReFungible');

--- a/tests/src/transferFrom.test.ts
+++ b/tests/src/transferFrom.test.ts
@@ -25,7 +25,7 @@
     await usingApi(async (api: ApiPromise) => {
       const Alice = privateKey('//Alice');
       const Bob = privateKey('//Bob');
-      const Charlie = privateKey('//CHARLIE');
+      const Charlie = privateKey('//Charlie');
       // nft
       const nftCollectionId = await createCollectionExpectSuccess();
       const newNftTokenId = await createItemExpectSuccess(Alice, nftCollectionId, 'NFT');
@@ -40,11 +40,11 @@
       await transferFromExpectSuccess(fungibleCollectionId, newFungibleTokenId, Bob, Alice, Charlie, 1, 'Fungible');
       // reFungible
       const reFungibleCollectionId = await
-        createCollectionExpectSuccess({mode: {type: 'ReFungible', decimalPoints: 0}});
+        createCollectionExpectSuccess({mode: {type: 'ReFungible'}});
       const newReFungibleTokenId = await createItemExpectSuccess(Alice, reFungibleCollectionId, 'ReFungible');
-      await approveExpectSuccess(reFungibleCollectionId, newReFungibleTokenId, Alice, Bob);
+      await approveExpectSuccess(reFungibleCollectionId, newReFungibleTokenId, Alice, Bob, 100);
       await transferFromExpectSuccess(reFungibleCollectionId,
-        newReFungibleTokenId, Bob, Alice, Charlie, 1, 'ReFungible');
+        newReFungibleTokenId, Bob, Alice, Charlie, 100, 'ReFungible');
     });
   });
 });
@@ -54,7 +54,7 @@
     await usingApi(async (api: ApiPromise) => {
       const Alice = privateKey('//Alice');
       const Bob = privateKey('//Bob');
-      const Charlie = privateKey('//CHARLIE');
+      const Charlie = privateKey('//Charlie');
       // nft
       const nftCollectionCount = await api.query.nft.createdCollectionCount() as unknown as number;
       await approveExpectFail(nftCollectionCount + 1, 1, Alice, Bob);
@@ -96,7 +96,7 @@
     await usingApi(async (api: ApiPromise) => {
       const Alice = privateKey('//Alice');
       const Bob = privateKey('//Bob');
-      const Charlie = privateKey('//CHARLIE');
+      const Charlie = privateKey('//Charlie');
       // nft
       const nftCollectionId = await createCollectionExpectSuccess();
       const newNftTokenId = await createItemExpectSuccess(Alice, nftCollectionId, 'NFT');
@@ -109,7 +109,7 @@
       await transferFromExpectFail(fungibleCollectionId, newFungibleTokenId, Bob, Alice, Charlie, 1);
       // reFungible
       const reFungibleCollectionId = await
-        createCollectionExpectSuccess({mode: {type: 'ReFungible', decimalPoints: 0}});
+        createCollectionExpectSuccess({mode: {type: 'ReFungible'}});
       const newReFungibleTokenId = await createItemExpectSuccess(Alice, reFungibleCollectionId, 'ReFungible');
       await transferFromExpectFail(reFungibleCollectionId,
         newReFungibleTokenId, Bob, Alice, Charlie, 1);
@@ -120,7 +120,7 @@
     await usingApi(async (api: ApiPromise) => {
       const Alice = privateKey('//Alice');
       const Bob = privateKey('//Bob');
-      const Charlie = privateKey('//CHARLIE');
+      const Charlie = privateKey('//Charlie');
       // nft
       const nftCollectionId = await createCollectionExpectSuccess();
       const newNftTokenId = await createItemExpectSuccess(Alice, nftCollectionId, 'NFT');
@@ -135,7 +135,7 @@
       await transferFromExpectFail(fungibleCollectionId, newFungibleTokenId, Bob, Alice, Charlie, 2);
       // reFungible
       const reFungibleCollectionId = await
-        createCollectionExpectSuccess({mode: {type: 'ReFungible', decimalPoints: 0}});
+        createCollectionExpectSuccess({mode: {type: 'ReFungible'}});
       const newReFungibleTokenId = await createItemExpectSuccess(Alice, reFungibleCollectionId, 'ReFungible');
       await approveExpectSuccess(reFungibleCollectionId, newReFungibleTokenId, Alice, Bob);
       await transferFromExpectFail(reFungibleCollectionId,
@@ -147,8 +147,8 @@
     await usingApi(async (api: ApiPromise) => {
       const Alice = privateKey('//Alice');
       const Bob = privateKey('//Bob');
-      const Charlie = privateKey('//CHARLIE');
-      const Dave = privateKey('//DAVE');
+      const Charlie = privateKey('//Charlie');
+      const Dave = privateKey('//Dave');
       // nft
       const nftCollectionId = await createCollectionExpectSuccess();
       const newNftTokenId = await createItemExpectSuccess(Alice, nftCollectionId, 'NFT');
@@ -174,7 +174,7 @@
       }
       // reFungible
       const reFungibleCollectionId = await
-        createCollectionExpectSuccess({mode: {type: 'ReFungible', decimalPoints: 0}});
+        createCollectionExpectSuccess({mode: {type: 'ReFungible'}});
       const newReFungibleTokenId = await createItemExpectSuccess(Alice, reFungibleCollectionId, 'ReFungible');
       try {
         await approveExpectFail(reFungibleCollectionId, newReFungibleTokenId, Dave, Bob);

--- a/tests/src/types.ts
+++ b/tests/src/types.ts
@@ -1,3 +1,8 @@
+//
+// This file is subject to the terms and conditions defined in
+// file 'LICENSE', which is part of this source code package.
+//
+
 import BN from 'bn.js';
 
 export interface ICollectionInterface {