git.delta.rocks / unique-network / refs/commits / 1a56db748b0a

--- a/client/rpc/src/lib.rs
+++ b/client/rpc/src/lib.rs
@@ -42,6 +42,7 @@
 #[rpc(server)]
 #[async_trait]
 pub trait UniqueApi<BlockHash, CrossAccountId, AccountId> {
+	/// Get tokens owned by account
 	#[method(name = "unique_accountTokens")]
 	fn account_tokens(
 		&self,
@@ -49,12 +50,14 @@
 		account: CrossAccountId,
 		at: Option<BlockHash>,
 	) -> Result<Vec<TokenId>>;
+	/// Get tokens contained in collection
 	#[method(name = "unique_collectionTokens")]
 	fn collection_tokens(
 		&self,
 		collection: CollectionId,
 		at: Option<BlockHash>,
 	) -> Result<Vec<TokenId>>;
+	/// Check if token exists
 	#[method(name = "unique_tokenExists")]
 	fn token_exists(
 		&self,
@@ -62,7 +65,7 @@
 		token: TokenId,
 		at: Option<BlockHash>,
 	) -> Result<bool>;
-
+	/// Get token owner
 	#[method(name = "unique_tokenOwner")]
 	fn token_owner(
 		&self,
@@ -70,6 +73,7 @@
 		token: TokenId,
 		at: Option<BlockHash>,
 	) -> Result<Option<CrossAccountId>>;
+	/// Get token owner, in case of nested token - find the parent recursively
 	#[method(name = "unique_topmostTokenOwner")]
 	fn topmost_token_owner(
 		&self,
@@ -77,6 +81,7 @@
 		token: TokenId,
 		at: Option<BlockHash>,
 	) -> Result<Option<CrossAccountId>>;
+	/// Get tokens nested directly into the token
 	#[method(name = "unique_tokenChildren")]
 	fn token_children(
 		&self,
@@ -84,7 +89,7 @@
 		token: TokenId,
 		at: Option<BlockHash>,
 	) -> Result<Vec<TokenChild>>;
-
+	/// Get collection properties
 	#[method(name = "unique_collectionProperties")]
 	fn collection_properties(
 		&self,
@@ -92,7 +97,7 @@
 		keys: Option<Vec<String>>,
 		at: Option<BlockHash>,
 	) -> Result<Vec<Property>>;
-
+	/// Get token properties
 	#[method(name = "unique_tokenProperties")]
 	fn token_properties(
 		&self,
@@ -101,7 +106,7 @@
 		keys: Option<Vec<String>>,
 		at: Option<BlockHash>,
 	) -> Result<Vec<Property>>;
-
+	/// Get property permissions
 	#[method(name = "unique_propertyPermissions")]
 	fn property_permissions(
 		&self,
@@ -109,7 +114,7 @@
 		keys: Option<Vec<String>>,
 		at: Option<BlockHash>,
 	) -> Result<Vec<PropertyKeyPermission>>;
-
+	/// Get token data
 	#[method(name = "unique_tokenData")]
 	fn token_data(
 		&self,
@@ -118,9 +123,10 @@
 		keys: Option<Vec<String>>,
 		at: Option<BlockHash>,
 	) -> Result<TokenData<CrossAccountId>>;
-
+	/// Get amount of unique collection tokens
 	#[method(name = "unique_totalSupply")]
 	fn total_supply(&self, collection: CollectionId, at: Option<BlockHash>) -> Result<u32>;
+	/// Get owned amount of any user tokens
 	#[method(name = "unique_accountBalance")]
 	fn account_balance(
 		&self,
@@ -128,6 +134,7 @@
 		account: CrossAccountId,
 		at: Option<BlockHash>,
 	) -> Result<u32>;
+	/// Get owned amount of specific account token
 	#[method(name = "unique_balance")]
 	fn balance(
 		&self,
@@ -136,6 +143,7 @@
 		token: TokenId,
 		at: Option<BlockHash>,
 	) -> Result<String>;
+	/// Get allowed amount
 	#[method(name = "unique_allowance")]
 	fn allowance(
 		&self,
@@ -145,19 +153,21 @@
 		token: TokenId,
 		at: Option<BlockHash>,
 	) -> Result<String>;
-
+	/// Get admin list
 	#[method(name = "unique_adminlist")]
 	fn adminlist(
 		&self,
 		collection: CollectionId,
 		at: Option<BlockHash>,
 	) -> Result<Vec<CrossAccountId>>;
+	/// Get allowlist
 	#[method(name = "unique_allowlist")]
 	fn allowlist(
 		&self,
 		collection: CollectionId,
 		at: Option<BlockHash>,
 	) -> Result<Vec<CrossAccountId>>;
+	/// Check if user is allowed to use collection
 	#[method(name = "unique_allowed")]
 	fn allowed(
 		&self,
@@ -165,17 +175,20 @@
 		user: CrossAccountId,
 		at: Option<BlockHash>,
 	) -> Result<bool>;
+	/// Get last token ID created in a collection
 	#[method(name = "unique_lastTokenId")]
 	fn last_token_id(&self, collection: CollectionId, at: Option<BlockHash>) -> Result<TokenId>;
+	/// Get collection by specified ID
 	#[method(name = "unique_collectionById")]
 	fn collection_by_id(
 		&self,
 		collection: CollectionId,
 		at: Option<BlockHash>,
 	) -> Result<Option<RpcCollection<AccountId>>>;
+	/// Get collection stats
 	#[method(name = "unique_collectionStats")]
 	fn collection_stats(&self, at: Option<BlockHash>) -> Result<CollectionStats>;
-
+	/// Get number of blocks when sponsored transaction is available
 	#[method(name = "unique_nextSponsored")]
 	fn next_sponsored(
 		&self,
@@ -184,14 +197,14 @@
 		token: TokenId,
 		at: Option<BlockHash>,
 	) -> Result<Option<u64>>;
-
+	/// Get effective collection limits
 	#[method(name = "unique_effectiveCollectionLimits")]
 	fn effective_collection_limits(
 		&self,
 		collection_id: CollectionId,
 		at: Option<BlockHash>,
 	) -> Result<Option<CollectionLimits>>;
-
+	/// Get total pieces of token
 	#[method(name = "unique_totalPieces")]
 	fn total_pieces(
 		&self,
@@ -304,6 +317,7 @@
 		fn base_parts(&self, base_id: RmrkBaseId, at: Option<BlockHash>) -> Result<Vec<PartType>>;
 
 		#[method(name = "rmrk_themeNames")]
+		/// Get Base's theme names
 		fn theme_names(
 			&self,
 			base_id: RmrkBaseId,
@@ -311,6 +325,7 @@
 		) -> Result<Vec<RmrkThemeName>>;
 
 		#[method(name = "rmrk_themes")]
+		/// Get Theme info -- name, properties, and inherit flag
 		fn theme(
 			&self,
 			base_id: RmrkBaseId,

--- a/pallets/common/src/lib.rs
+++ b/pallets/common/src/lib.rs
@@ -299,46 +299,48 @@
 		///
 		/// # Arguments
 		///
-		/// * collection_id: Globally unique identifier of collection.
+		/// * collection_id: Globally unique identifier of collection that has been destroyed.
 		CollectionDestroyed(CollectionId),
 
 		/// New item was created.
 		///
 		/// # Arguments
 		///
-		/// * collection_id: Id of the collection where item was created.
+		/// * collection_id: ID of the collection where the item was created.
 		///
-		/// * item_id: Id of an item. Unique within the collection.
+		/// * item_id: ID of the item. Unique within the collection.
 		///
-		/// * recipient: Owner of newly created item
+		/// * recipient: Owner of the newly created item.
 		///
-		/// * amount: Always 1 for NFT
+		/// * amount: The amount of tokens that were created (always 1 for NFT).
 		ItemCreated(CollectionId, TokenId, T::CrossAccountId, u128),
 
 		/// Collection item was burned.
 		///
 		/// # Arguments
 		///
-		/// * collection_id.
+		/// * collection_id: Identifier of the collection to which the burned NFT belonged.
 		///
 		/// * item_id: Identifier of burned NFT.
 		///
-		/// * owner: which user has destroyed its tokens
+		/// * owner: Which user has destroyed their tokens.
 		///
-		/// * amount: Always 1 for NFT
+		/// * amount: The amount of tokens that were destroyed (always 1 for NFT).
 		ItemDestroyed(CollectionId, TokenId, T::CrossAccountId, u128),
 
-		/// Item was transferred
+		/// Item was transferred.
+		/// 
+		/// # Arguments
 		///
-		/// * collection_id: Id of collection to which item is belong
+		/// * collection_id: ID of the collection to which the item belongs.
 		///
-		/// * item_id: Id of an item
+		/// * item_id: ID of the item trasnferred.
 		///
-		/// * sender: Original owner of item
+		/// * sender: Original owner of the item.
 		///
-		/// * recipient: New owner of item
+		/// * recipient: New owner of the item.
 		///
-		/// * amount: Always 1 for NFT
+		/// * amount: The amount of tokens that were transferred (always 1 for NFT).
 		Transfer(
 			CollectionId,
 			TokenId,
@@ -347,6 +349,10 @@
 			u128,
 		),
 
+		/// Sponsoring allowance was approved.
+		/// 
+		/// # Arguments
+		/// 
 		/// * collection_id
 		///
 		/// * item_id
@@ -364,14 +370,53 @@
 			u128,
 		),
 
+		/// Collection property was added or edited.
+		/// 
+		/// # Arguments
+		/// 
+		/// * collection_id: ID of the collection, whose property was just set.
+		/// 
+		/// * property_key: Key of the property that was just set.
 		CollectionPropertySet(CollectionId, PropertyKey),
 
+		/// Collection property was deleted.
+		/// 
+		/// # Arguments
+		/// 
+		/// * collection_id: ID of the collection, whose property was just deleted.
+		/// 
+		/// * property_key: Key of the property that was just deleted.
 		CollectionPropertyDeleted(CollectionId, PropertyKey),
 
+		/// Item property was added or edited.
+		/// 
+		/// # Arguments
+		/// 
+		/// * collection_id: ID of the collection, whose token's property was just set.
+		/// 
+		/// * item_id: ID of the item, whose property was just set.
+		/// 
+		/// * property_key: Key of the property that was just set.
 		TokenPropertySet(CollectionId, TokenId, PropertyKey),
 
+		/// Item property was deleted.
+		/// 
+		/// # Arguments
+		/// 
+		/// * collection_id: ID of the collection, whose token's property was just deleted.
+		/// 
+		/// * item_id: ID of the item, whose property was just deleted.
+		/// 
+		/// * property_key: Key of the property that was just deleted.
 		TokenPropertyDeleted(CollectionId, TokenId, PropertyKey),
 
+		/// Token property permission was added or updated for a collection.
+		/// 
+		/// # Arguments
+		/// 
+		/// * collection_id: ID of the collection, whose permissions were just set/updated.
+		/// 
+		/// * property_key: Key of the property of the set/updated permission.
 		PropertyPermissionSet(CollectionId, PropertyKey),
 	}
 
@@ -413,26 +458,26 @@
 		/// Metadata flag frozen
 		MetadataFlagFrozen,
 
-		/// Item not exists.
+		/// Item does not exist
 		TokenNotFound,
-		/// Item balance not enough.
+		/// Item is balance not enough
 		TokenValueTooLow,
-		/// Requested value more than approved.
+		/// Requested value is more than the approved
 		ApprovedValueTooLow,
 		/// Tried to approve more than owned
 		CantApproveMoreThanOwned,
 
 		/// Can't transfer tokens to ethereum zero address
 		AddressIsZero,
-		/// Target collection doesn't supports this operation
+		/// Target collection doesn't support this operation
 		UnsupportedOperation,
 
-		/// Not sufficient funds to perform action
+		/// Insufficient funds to perform an action
 		NotSufficientFounds,
 
-		/// User not passed nesting rule
+		/// User does not satisfy the nesting rule
 		UserIsNotAllowedToNest,
-		/// Only tokens from specific collections may nest tokens under this
+		/// Only tokens from specific collections may nest tokens under this one
 		SourceCollectionIsNotAllowedToNest,
 
 		/// Tried to store more data than allowed in collection field
@@ -447,7 +492,7 @@
 		/// Property key is too long
 		PropertyKeyIsTooLong,
 
-		/// Only ASCII letters, digits, and '_', '-' are allowed
+		/// Only ASCII letters, digits, and symbols '_', '-', and '.' are allowed
 		InvalidCharacterInPropertyKey,
 
 		/// Empty property keys are forbidden
@@ -460,8 +505,11 @@
 		CollectionIsInternal,
 	}
 
+	/// The number of created collections. Essentially contains the last collection ID.
 	#[pallet::storage]
 	pub type CreatedCollectionCount<T> = StorageValue<Value = CollectionId, QueryKind = ValueQuery>;
+
+	/// The number of destroyed collections
 	#[pallet::storage]
 	pub type DestroyedCollectionCount<T> =
 		StorageValue<Value = CollectionId, QueryKind = ValueQuery>;
@@ -486,6 +534,7 @@
 		OnEmpty = up_data_structs::CollectionProperties,
 	>;
 
+	/// Token permissions of a collection
 	#[pallet::storage]
 	#[pallet::getter(fn property_permissions)]
 	pub type CollectionPropertyPermissions<T> = StorageMap<
@@ -495,6 +544,7 @@
 		QueryKind = ValueQuery,
 	>;
 
+	/// Amount of collection admins
 	#[pallet::storage]
 	pub type AdminAmount<T> = StorageMap<
 		Hasher = Blake2_128Concat,

--- a/pallets/fungible/src/lib.rs
+++ b/pallets/fungible/src/lib.rs
@@ -44,6 +44,7 @@
 pub mod erc;
 pub mod weights;
 
+/// todo:doc?
 pub type CreateItemData<T> = (<T as pallet_evm::account::Config>::CrossAccountId, u128);
 pub(crate) type SelfWeightOf<T> = <T as Config>::WeightInfo;
 
@@ -78,10 +79,12 @@
 	#[pallet::generate_store(pub(super) trait Store)]
 	pub struct Pallet<T>(_);
 
+	/// Total amount of fungible tokens inside a collection.
 	#[pallet::storage]
 	pub type TotalSupply<T: Config> =
 		StorageMap<Hasher = Twox64Concat, Key = CollectionId, Value = u128, QueryKind = ValueQuery>;
 
+	/// Amount of tokens owned by an account inside a collection.
 	#[pallet::storage]
 	pub type Balance<T: Config> = StorageNMap<
 		Key = (
@@ -92,6 +95,7 @@
 		QueryKind = ValueQuery,
 	>;
 
+	/// todo:doc
 	#[pallet::storage]
 	pub type Allowance<T: Config> = StorageNMap<
 		Key = (

--- a/pallets/nonfungible/src/lib.rs
+++ b/pallets/nonfungible/src/lib.rs
@@ -56,6 +56,8 @@
 pub type CreateItemData<T> = CreateNftExData<<T as pallet_evm::account::Config>::CrossAccountId>;
 pub(crate) type SelfWeightOf<T> = <T as Config>::WeightInfo;
 
+/// Token data, stored independently from other data used to describe it.
+/// Notably contains the owner account address.
 #[struct_versioning::versioned(version = 2, upper)]
 #[derive(Encode, Decode, TypeInfo, MaxEncodedLen)]
 pub struct ItemData<CrossAccountId> {
@@ -102,13 +104,17 @@
 	#[pallet::generate_store(pub(super) trait Store)]
 	pub struct Pallet<T>(_);
 
+	/// Total amount of minted tokens in a collection.
 	#[pallet::storage]
 	pub type TokensMinted<T: Config> =
 		StorageMap<Hasher = Twox64Concat, Key = CollectionId, Value = u32, QueryKind = ValueQuery>;
+
+	/// Amount of burnt tokens in a collection.
 	#[pallet::storage]
 	pub type TokensBurnt<T: Config> =
 		StorageMap<Hasher = Twox64Concat, Key = CollectionId, Value = u32, QueryKind = ValueQuery>;
 
+	/// Token data, used to partially describe a token.
 	#[pallet::storage]
 	pub type TokenData<T: Config> = StorageNMap<
 		Key = (Key<Twox64Concat, CollectionId>, Key<Twox64Concat, TokenId>),
@@ -116,6 +122,7 @@
 		QueryKind = OptionQuery,
 	>;
 
+	/// Key-value pairs, describing the metadata of a token.
 	#[pallet::storage]
 	#[pallet::getter(fn token_properties)]
 	pub type TokenProperties<T: Config> = StorageNMap<
@@ -125,6 +132,7 @@
 		OnEmpty = up_data_structs::TokenProperties,
 	>;
 
+	/// Scoped, auxiliary properties of a token, primarily used for on-chain operations.
 	#[pallet::storage]
 	#[pallet::getter(fn token_aux_property)]
 	pub type TokenAuxProperties<T: Config> = StorageNMap<
@@ -138,7 +146,7 @@
 		QueryKind = OptionQuery,
 	>;
 
-	/// Used to enumerate tokens owned by account
+	/// Used to enumerate tokens owned by account.
 	#[pallet::storage]
 	pub type Owned<T: Config> = StorageNMap<
 		Key = (
@@ -150,7 +158,7 @@
 		QueryKind = ValueQuery,
 	>;
 
-	/// Used to enumerate token's children
+	/// Used to enumerate token's children.
 	#[pallet::storage]
 	#[pallet::getter(fn token_children)]
 	pub type TokenChildren<T: Config> = StorageNMap<
@@ -163,6 +171,7 @@
 		QueryKind = ValueQuery,
 	>;
 
+	/// Amount of tokens owned in a collection.s
 	#[pallet::storage]
 	pub type AccountBalance<T: Config> = StorageNMap<
 		Key = (
@@ -173,6 +182,7 @@
 		QueryKind = ValueQuery,
 	>;
 
+	/// todo doc
 	#[pallet::storage]
 	pub type Allowance<T: Config> = StorageNMap<
 		Key = (Key<Twox64Concat, CollectionId>, Key<Twox64Concat, TokenId>),
@@ -180,6 +190,7 @@
 		QueryKind = OptionQuery,
 	>;
 
+	/// Upgrade from the old schema to properties.
 	#[pallet::hooks]
 	impl<T: Config> Hooks<BlockNumberFor<T>> for Pallet<T> {
 		fn on_runtime_upgrade() -> Weight {

--- a/pallets/refungible/src/lib.rs
+++ b/pallets/refungible/src/lib.rs
@@ -38,6 +38,8 @@
 pub mod weights;
 pub(crate) type SelfWeightOf<T> = <T as Config>::WeightInfo;
 
+/// Token data, stored independently from other data used to describe it.
+/// Notably contains the token metadata.
 #[struct_versioning::versioned(version = 2, upper)]
 #[derive(Encode, Decode, Default, TypeInfo, MaxEncodedLen)]
 pub struct ItemData {
@@ -86,13 +88,17 @@
 	#[pallet::generate_store(pub(super) trait Store)]
 	pub struct Pallet<T>(_);
 
+	/// Total amount of minted tokens in a collection.
 	#[pallet::storage]
 	pub type TokensMinted<T: Config> =
 		StorageMap<Hasher = Twox64Concat, Key = CollectionId, Value = u32, QueryKind = ValueQuery>;
+	
+	/// Amount of tokens burnt in a collection.
 	#[pallet::storage]
 	pub type TokensBurnt<T: Config> =
 		StorageMap<Hasher = Twox64Concat, Key = CollectionId, Value = u32, QueryKind = ValueQuery>;
 
+	/// Token data, used to partially describe a token.
 	#[pallet::storage]
 	pub type TokenData<T: Config> = StorageNMap<
 		Key = (Key<Twox64Concat, CollectionId>, Key<Twox64Concat, TokenId>),
@@ -100,6 +106,7 @@
 		QueryKind = ValueQuery,
 	>;
 
+	/// Amount of pieces a refungible token is split into.
 	#[pallet::storage]
 	pub type TotalSupply<T: Config> = StorageNMap<
 		Key = (Key<Twox64Concat, CollectionId>, Key<Twox64Concat, TokenId>),
@@ -107,7 +114,7 @@
 		QueryKind = ValueQuery,
 	>;
 
-	/// Used to enumerate tokens owned by account
+	/// Used to enumerate tokens owned by account.
 	#[pallet::storage]
 	pub type Owned<T: Config> = StorageNMap<
 		Key = (
@@ -119,6 +126,7 @@
 		QueryKind = ValueQuery,
 	>;
 
+	/// Amount of tokens (not pieces) partially owned by an account within a collection.
 	#[pallet::storage]
 	pub type AccountBalance<T: Config> = StorageNMap<
 		Key = (
@@ -130,6 +138,7 @@
 		QueryKind = ValueQuery,
 	>;
 
+	/// Amount of pieces of a token owned by an account.
 	#[pallet::storage]
 	pub type Balance<T: Config> = StorageNMap<
 		Key = (
@@ -142,6 +151,7 @@
 		QueryKind = ValueQuery,
 	>;
 
+	/// todo:doc
 	#[pallet::storage]
 	pub type Allowance<T: Config> = StorageNMap<
 		Key = (
@@ -248,7 +258,7 @@
 		// TODO: ERC721 transfer event
 		Ok(())
 	}
-
+	
 	pub fn burn(
 		collection: &RefungibleHandle<T>,
 		owner: &T::CrossAccountId,
@@ -595,6 +605,7 @@
 		Ok(())
 	}
 
+	/// todo:doc oh look, a precedent. not pub, too. but it has an unclear use-case.
 	/// Returns allowance, which should be set after transaction
 	fn check_allowed(
 		collection: &RefungibleHandle<T>,

--- a/pallets/structure/src/lib.rs
+++ b/pallets/structure/src/lib.rs
@@ -25,19 +25,19 @@
 
 	#[pallet::error]
 	pub enum Error<T> {
-		/// While searched for owner, got already checked account
+		/// While searching for the owner, encountered an already checked account, detecting a loop.
 		OuroborosDetected,
-		/// While searched for owner, encountered depth limit
+		/// While searching for the owner, reached the depth limit.
 		DepthLimit,
-		/// While iterating over children, encountered breadth limit
+		/// While iterating over children, reached the breadth limit.
 		BreadthLimit,
-		/// While searched for owner, found token owner by not-yet-existing token
+		/// Couldn't find the token owner that is a token. Perhaps, it does not yet exist. todo:doc? rephrase?
 		TokenNotFound,
 	}
 
 	#[pallet::event]
 	pub enum Event<T> {
-		/// Executed call on behalf of token
+		/// Executed call on behalf of the token.
 		Executed(DispatchResult),
 	}
 
@@ -73,11 +73,11 @@
 
 #[derive(PartialEq)]
 pub enum Parent<CrossAccountId> {
-	/// Token owned by normal account
+	/// Token owned by a normal account.
 	User(CrossAccountId),
-	/// Passed token not found
+	/// Could not find the token provided as the owner.
 	TokenNotFound,
-	/// Token owner is another token (target token still may not exist)
+	/// Token owner is another token (still, the target token may not exist).
 	Token(CollectionId, TokenId),
 }
 

--- a/pallets/unique/src/lib.rs
+++ b/pallets/unique/src/lib.rs
@@ -101,7 +101,7 @@
 		/// * admin:  Admin address.
 		CollectionAdminAdded(CollectionId, CrossAccountId),
 
-		/// Collection owned was change
+		/// Collection owned was changed
 		///
 		/// # Arguments
 		///
@@ -137,7 +137,7 @@
 		/// * admin:  Admin address.
 		CollectionAdminRemoved(CollectionId, CrossAccountId),
 
-		/// Address was remove from allow list
+		/// Address was removed from the allow list
 		///
 		/// # Arguments
 		///
@@ -146,7 +146,7 @@
 		/// * user:  Address.
 		AllowListAddressRemoved(CollectionId, CrossAccountId),
 
-		/// Address was add to allow list
+		/// Address was added to the allow list
 		///
 		/// # Arguments
 		///
@@ -155,13 +155,18 @@
 		/// * user:  Address.
 		AllowListAddressAdded(CollectionId, CrossAccountId),
 
-		/// Collection limits was set
+		/// Collection limits were set
 		///
 		/// # Arguments
 		///
 		/// * collection_id: Globally unique collection identifier.
 		CollectionLimitSet(CollectionId),
 
+		/// Collection permissions were set
+		/// 
+		/// # Arguments
+		/// 
+		/// * collection_id: Globally unique collection identifier.
 		CollectionPermissionSet(CollectionId),
 	}
 }
@@ -198,7 +203,7 @@
 		ChainVersion: u64;
 		//#endregion
 
-		//#region Tokens transfer rate limit baskets
+		//#region Tokens transfer sponosoring rate limit baskets
 		/// (Collection id (controlled?2), who created (real))
 		/// TODO: Off chain worker should remove from this map when collection gets removed
 		pub CreateItemBasket get(fn create_item_basket): map hasher(blake2_128_concat) (CollectionId, T::AccountId) => Option<T::BlockNumber>;
@@ -214,11 +219,14 @@
 		/// Collection id (controlled?2), token id (controlled?2)
 		#[deprecated]
 		pub VariableMetaDataBasket get(fn variable_meta_data_basket): double_map hasher(blake2_128_concat) CollectionId, hasher(blake2_128_concat) TokenId => Option<T::BlockNumber>;
+		/// Last sponsoring of token property setting // todo:doc rephrase this and the following 
 		pub TokenPropertyBasket get(fn token_property_basket): double_map hasher(blake2_128_concat) CollectionId, hasher(blake2_128_concat) TokenId => Option<T::BlockNumber>;
 
-		/// Approval sponsoring
+		/// Last sponsoring of NFT approval in a collection
 		pub NftApproveBasket get(fn nft_approve_basket): double_map hasher(blake2_128_concat) CollectionId, hasher(blake2_128_concat) TokenId => Option<T::BlockNumber>;
+		/// Last sponsoring of fungible tokens approval in a collection
 		pub FungibleApproveBasket get(fn fungible_approve_basket): double_map hasher(blake2_128_concat) CollectionId, hasher(twox_64_concat) T::AccountId => Option<T::BlockNumber>;
+		/// Last sponsoring of RFT approval in a collection
 		pub RefungibleApproveBasket get(fn refungible_approve_basket): nmap hasher(blake2_128_concat) CollectionId, hasher(blake2_128_concat) TokenId, hasher(twox_64_concat) T::AccountId => Option<T::BlockNumber>;
 	}
 }
@@ -278,9 +286,16 @@
 			Self::create_collection_ex(origin, data)
 		}
 
-		/// This method creates a collection
+		/// Create a collection with explicit parameters.
+		/// Prefer it to the deprecated [`created_collection`] method.
+		///
+		/// # Permissions
+		///
+		/// * Anyone.
 		///
-		/// Prefer it to deprecated [`created_collection`] method
+		/// # Arguments
+		/// 
+		/// * data: explicit create-collection data.
 		#[weight = <SelfWeightOf<T>>::create_collection()]
 		#[transactional]
 		pub fn create_collection_ex(origin, data: CreateCollectionData<T::AccountId>) -> DispatchResult {
@@ -293,11 +308,11 @@
 			Ok(())
 		}
 
-		/// Destroys collection if no tokens within this collection
+		/// Destroy the collection if no tokens exist within.
 		///
 		/// # Permissions
 		///
-		/// * Collection Owner.
+		/// * Collection Owner
 		///
 		/// # Arguments
 		///
@@ -398,7 +413,7 @@
 		///
 		/// # Permissions
 		///
-		/// * Collection Owner.
+		/// * Collection Owner
 		///
 		/// # Arguments
 		///
@@ -424,40 +439,40 @@
 			target_collection.save()
 		}
 
-		/// Adds an admin of the Collection.
+		/// Adds an admin of the collection.
 		/// NFT Collection can be controlled by multiple admin addresses (some which can also be servers, for example). Admins can issue and burn NFTs, as well as add and remove other admins, but cannot change NFT or Collection ownership.
 		///
 		/// # Permissions
 		///
-		/// * Collection Owner.
-		/// * Collection Admin.
+		/// * Collection Owner
+		/// * Collection Admin
 		///
 		/// # Arguments
 		///
 		/// * collection_id: ID of the Collection to add admin for.
 		///
-		/// * new_admin_id: Address of new admin to add.
+		/// * new_admin: Address of new admin to add.
 		#[weight = <SelfWeightOf<T>>::add_collection_admin()]
 		#[transactional]
-		pub fn add_collection_admin(origin, collection_id: CollectionId, new_admin_id: T::CrossAccountId) -> DispatchResult {
+		pub fn add_collection_admin(origin, collection_id: CollectionId, new_admin: T::CrossAccountId) -> DispatchResult {
 			let sender = T::CrossAccountId::from_sub(ensure_signed(origin)?);
 			let collection = <CollectionHandle<T>>::try_get(collection_id)?;
 			collection.check_is_internal()?;
 
 			<Pallet<T>>::deposit_event(Event::<T>::CollectionAdminAdded(
 				collection_id,
-				new_admin_id.clone()
+				new_admin.clone()
 			));
 
-			<PalletCommon<T>>::toggle_admin(&collection, &sender, &new_admin_id, true)
+			<PalletCommon<T>>::toggle_admin(&collection, &sender, &new_admin, true)
 		}
 
 		/// Remove admin address of the Collection. An admin address can remove itself. List of admins may become empty, in which case only Collection Owner will be able to add an Admin.
 		///
 		/// # Permissions
 		///
-		/// * Collection Owner.
-		/// * Collection Admin.
+		/// * Collection Owner
+		/// * Collection Admin
 		///
 		/// # Arguments
 		///
@@ -479,9 +494,12 @@
 			<PalletCommon<T>>::toggle_admin(&collection, &sender, &account_id, false)
 		}
 
+		/// Set (invite) a new collection sponsor. If successful, confirmation from the sponsor-to-be will be pending.
+		/// 
 		/// # Permissions
 		///
 		/// * Collection Owner
+		/// * Collection Admin
 		///
 		/// # Arguments
 		///
@@ -507,9 +525,11 @@
 			target_collection.save()
 		}
 
+		/// Confirm own sponsorship of a collection.
+		/// 
 		/// # Permissions
 		///
-		/// * Sponsor.
+		/// * The sponsor to-be
 		///
 		/// # Arguments
 		///
@@ -538,7 +558,7 @@
 		///
 		/// # Permissions
 		///
-		/// * Collection owner.
+		/// * Collection Owner
 		///
 		/// # Arguments
 		///
@@ -560,12 +580,12 @@
 			target_collection.save()
 		}
 
-		/// This method creates a concrete instance of NFT Collection created with CreateCollection method.
+		/// Create a concrete instance of NFT Collection created with CreateCollection method.
 		///
 		/// # Permissions
 		///
-		/// * Collection Owner.
-		/// * Collection Admin.
+		/// * Collection Owner
+		/// * Collection Admin
 		/// * Anyone if
 		///     * Allow List is enabled, and
 		///     * Address is added to allow list, and
@@ -587,12 +607,12 @@
 			dispatch_tx::<T, _>(collection_id, |d| d.create_item(sender, owner, data, &budget))
 		}
 
-		/// This method creates multiple items in a collection created with CreateCollection method.
+		/// Create multiple items in a collection created with CreateCollection method.
 		///
 		/// # Permissions
 		///
-		/// * Collection Owner.
-		/// * Collection Admin.
+		/// * Collection Owner
+		/// * Collection Admin
 		/// * Anyone if
 		///     * Allow List is enabled, and
 		///     * Address is added to allow list, and
@@ -615,6 +635,18 @@
 			dispatch_tx::<T, _>(collection_id, |d| d.create_multiple_items(sender, owner, items_data, &budget))
 		}
 
+		/// Add or change collection properties.
+		///
+		/// # Permissions
+		///
+		/// * Collection Owner
+		/// * Collection Admin
+		///
+		/// # Arguments
+		///
+		/// * collection_id.
+		///
+		/// * properties: a vector of key-value pairs stored as the collection's metadata. Keys support Latin letters, '-', '_', and '.' as symbols.
 		#[weight = T::CommonWeightInfo::set_collection_properties(properties.len() as u32)]
 		#[transactional]
 		pub fn set_collection_properties(
@@ -629,6 +661,18 @@
 			dispatch_tx::<T, _>(collection_id, |d| d.set_collection_properties(sender, properties))
 		}
 
+		/// Delete specified collection properties.
+		///
+		/// # Permissions
+		///
+		/// * Collection Owner
+		/// * Collection Admin
+		///
+		/// # Arguments
+		///
+		/// * collection_id.
+		///
+		/// * property_keys: a vector of keys of the properties to be deleted.
 		#[weight = T::CommonWeightInfo::delete_collection_properties(property_keys.len() as u32)]
 		#[transactional]
 		pub fn delete_collection_properties(
@@ -643,6 +687,22 @@
 			dispatch_tx::<T, _>(collection_id, |d| d.delete_collection_properties(&sender, property_keys))
 		}
 
+		/// Add or change token properties according to collection's permissions.
+		///
+		/// # Permissions
+		///
+		/// * Depends on collection's token property permissions and specified property mutability:
+		/// 	* Collection Owner
+		/// 	* Collection Admin
+		/// 	* Token Owner
+		///
+		/// # Arguments
+		///
+		/// * collection_id.
+		/// 
+		/// * token_id.
+		///
+		/// * properties: a vector of key-value pairs stored as the token's metadata. Keys support Latin letters, '-', '_', and '.' as symbols.
 		#[weight = T::CommonWeightInfo::set_token_properties(properties.len() as u32)]
 		#[transactional]
 		pub fn set_token_properties(
@@ -659,6 +719,22 @@
 			dispatch_tx::<T, _>(collection_id, |d| d.set_token_properties(sender, token_id, properties, &budget))
 		}
 
+		/// Delete specified token properties.
+		///
+		/// # Permissions
+		///
+		/// * Depends on collection's token property permissions and specified property mutability:
+		/// 	* Collection Owner
+		/// 	* Collection Admin
+		/// 	* Token Owner
+		///
+		/// # Arguments
+		///
+		/// * collection_id.
+		///
+		/// * token_id.
+		///
+		/// * property_keys: a vector of keys of the properties to be deleted.
 		#[weight = T::CommonWeightInfo::delete_token_properties(property_keys.len() as u32)]
 		#[transactional]
 		pub fn delete_token_properties(
@@ -675,6 +751,18 @@
 			dispatch_tx::<T, _>(collection_id, |d| d.delete_token_properties(sender, token_id, property_keys, &budget))
 		}
 
+		/// Add or change token property permissions of a collection.
+		///
+		/// # Permissions
+		///
+		/// * Collection Owner
+		/// * Collection Admin
+		///
+		/// # Arguments
+		///
+		/// * collection_id.
+		///
+		/// * property_permissions: a vector of permissions for property keys. Keys support Latin letters, '-', '_', and '.' as symbols.
 		#[weight = T::CommonWeightInfo::set_token_property_permissions(property_permissions.len() as u32)]
 		#[transactional]
 		pub fn set_token_property_permissions(
@@ -689,6 +777,22 @@
 			dispatch_tx::<T, _>(collection_id, |d| d.set_token_property_permissions(&sender, property_permissions))
 		}
 
+		/// Create multiple items inside a collection with explicitly specified initial parameters.
+		/// 
+		/// # Permissions
+		///
+		/// * Collection Owner
+		/// * Collection Admin
+		/// * Anyone if
+		///     * Allow List is enabled, and
+		///     * Address is added to allow list, and
+		///     * MintPermission is enabled (see SetMintPermission method)
+		///
+		/// # Arguments
+		///
+		/// * collection_id: ID of the collection.
+		///
+		/// * data: explicit item creation data. 
 		#[weight = T::CommonWeightInfo::create_multiple_items_ex(&data)]
 		#[transactional]
 		pub fn create_multiple_items_ex(origin, collection_id: CollectionId, data: CreateItemExData<T::CrossAccountId>) -> DispatchResultWithPostInfo {
@@ -698,11 +802,11 @@
 			dispatch_tx::<T, _>(collection_id, |d| d.create_multiple_items_ex(sender, data, &budget))
 		}
 
-		/// Set transfers_enabled value for particular collection
+		/// Set transfers_enabled value for particular collection.
 		///
 		/// # Permissions
 		///
-		/// * Collection Owner.
+		/// * Collection Owner
 		///
 		/// # Arguments
 		///
@@ -723,13 +827,13 @@
 			target_collection.save()
 		}
 
-		/// Destroys a concrete instance of NFT.
+		/// Destroy a concrete instance of NFT.
 		///
 		/// # Permissions
 		///
-		/// * Collection Owner.
-		/// * Collection Admin.
-		/// * Current NFT Owner.
+		/// * Collection Owner
+		/// * Collection Admin
+		/// * Current NFT Owner
 		///
 		/// # Arguments
 		///
@@ -752,7 +856,7 @@
 			Ok(post_info)
 		}
 
-		/// Destroys a concrete instance of NFT on behalf of the owner
+		/// Destroy a concrete instance of NFT on behalf of the owner.
 		/// See also: [`approve`]
 		///
 		/// # Permissions
@@ -835,6 +939,7 @@
 		/// Change ownership of a NFT on behalf of the owner. See Approve method for additional information. After this method executes, the approval is removed so that the approved address will not be able to transfer this NFT again from this owner.
 		///
 		/// # Permissions
+		/// 
 		/// * Collection Owner
 		/// * Collection Admin
 		/// * Current NFT owner
@@ -860,6 +965,18 @@
 			dispatch_tx::<T, _>(collection_id, |d| d.transfer_from(sender, from, recipient, item_id, value, &budget))
 		}
 
+		/// Set specific limits of a collection. Empty, or None fields mean chain default.
+		///.
+		/// # Permissions
+		/// 
+		/// * Collection Owner
+		/// * Collection Admin
+		///
+		/// # Arguments
+		///
+		/// * collection_id.
+		///
+		/// * new_limit: The new limits of the collection. They will overwrite the current ones.
 		#[weight = <SelfWeightOf<T>>::set_collection_limits()]
 		#[transactional]
 		pub fn set_collection_limits(
@@ -882,12 +999,24 @@
 			target_collection.save()
 		}
 
+		/// Set specific permissions of a collection. Empty, or None fields mean chain default.
+		///
+		/// # Permissions
+		/// 
+		/// * Collection Owner
+		/// * Collection Admin
+		///
+		/// # Arguments
+		///
+		/// * collection_id.
+		///
+		/// * new_permission: The new permissions of the collection. They will overwrite the current ones.
 		#[weight = <SelfWeightOf<T>>::set_collection_limits()]
 		#[transactional]
 		pub fn set_collection_permissions(
 			origin,
 			collection_id: CollectionId,
-			new_limit: CollectionPermissions,
+			new_permission: CollectionPermissions,
 		) -> DispatchResult {
 			let sender = T::CrossAccountId::from_sub(ensure_signed(origin)?);
 			let mut target_collection = <CollectionHandle<T>>::try_get(collection_id)?;
@@ -895,7 +1024,7 @@
 			target_collection.check_is_owner_or_admin(&sender)?;
 			let old_limit = &target_collection.permissions;
 
-			target_collection.permissions = <PalletCommon<T>>::clamp_permissions(target_collection.mode.clone(), &old_limit, new_limit)?;
+			target_collection.permissions = <PalletCommon<T>>::clamp_permissions(target_collection.mode.clone(), &old_limit, new_permission)?;
 
 			<Pallet<T>>::deposit_event(Event::<T>::CollectionPermissionSet(
 				collection_id
@@ -904,6 +1033,19 @@
 			target_collection.save()
 		}
 
+		/// Re-partition a refungible token, while owning all of its parts.
+		///
+		/// # Permissions
+		/// 
+		/// * Token Owner (must own every part)
+		///
+		/// # Arguments
+		///
+		/// * collection_id.
+		/// 
+		/// * token: the ID of the RFT. 
+		///
+		/// * amount: The new number of parts into which the token shall be partitioned.
 		#[weight = T::RefungibleExtensionsWeightInfo::repartition()]
 		#[transactional]
 		pub fn repartition(

--- a/primitives/data-structs/src/lib.rs
+++ b/primitives/data-structs/src/lib.rs
@@ -197,7 +197,6 @@
 #[cfg_attr(feature = "serde1", derive(Serialize, Deserialize))]
 pub enum CollectionMode {
 	NFT,
-	// decimal points
 	Fungible(DecimalPoints),
 	ReFungible,
 }
@@ -252,12 +251,14 @@
 pub enum SponsorshipState<AccountId> {
 	/// The fees are applied to the transaction sender
 	Disabled,
+	/// Pending confirmation from a sponsor-to-be
 	Unconfirmed(AccountId),
 	/// Transactions are sponsored by specified account
 	Confirmed(AccountId),
 }
 
 impl<AccountId> SponsorshipState<AccountId> {
+	/// Get the acting sponsor account, if present
 	pub fn sponsor(&self) -> Option<&AccountId> {
 		match self {
 			Self::Confirmed(sponsor) => Some(sponsor),
@@ -265,6 +266,7 @@
 		}
 	}
 
+	/// Get the sponsor account currently pending confirmation, if present
 	pub fn pending_sponsor(&self) -> Option<&AccountId> {
 		match self {
 			Self::Unconfirmed(sponsor) | Self::Confirmed(sponsor) => Some(sponsor),
@@ -272,6 +274,7 @@
 		}
 	}
 
+	/// Is sponsorship set and acting
 	pub fn confirmed(&self) -> bool {
 		matches!(self, Self::Confirmed(_))
 	}
@@ -283,7 +286,7 @@
 	}
 }
 
-/// Used in storage
+/// Collection parameters, used in storage (see [`RpcCollection`] for the RPC version)
 #[struct_versioning::versioned(version = 2, upper)]
 #[derive(Encode, Decode, Clone, PartialEq, TypeInfo, MaxEncodedLen)]
 pub struct Collection<AccountId> {
@@ -324,7 +327,7 @@
 	pub meta_update_permission: MetaUpdatePermission,
 }
 
-/// Used in RPC calls
+/// Collection parameters, used in RPC calls (see [`Collection`] for the storage version)
 #[derive(Encode, Decode, Clone, PartialEq, TypeInfo)]
 #[cfg_attr(feature = "serde1", derive(Serialize, Deserialize))]
 pub struct RpcCollection<AccountId> {
@@ -362,12 +365,15 @@
 
 pub type CollectionPropertiesVec = BoundedVec<Property, ConstU32<MAX_PROPERTIES_PER_ITEM>>;
 
-/// All fields are wrapped in `Option`s, where None means chain default
+/// Limits and restrictions of a collection.
+/// All fields are wrapped in `Option`s, where None means chain default.
 // When adding/removing fields from this struct - don't forget to also update clamp_limits
 #[derive(Encode, Decode, Debug, Default, Clone, PartialEq, TypeInfo, MaxEncodedLen)]
 #[cfg_attr(feature = "serde1", derive(Serialize, Deserialize))]
 pub struct CollectionLimits {
+	/// Maximum number of owned tokens per account
 	pub account_token_ownership_limit: Option<u32>,
+	/// Maximum size of data of a sponsored transaction
 	pub sponsored_data_size: Option<u32>,
 
 	/// FIXME should we delete this or repurpose it?
@@ -375,13 +381,18 @@
 	/// Some(v) - setVariableMetadata is sponsored
 	///           if there is v block between txs
 	pub sponsored_data_rate_limit: Option<SponsoringRateLimit>,
+	/// Maximum amount of tokens inside the collection
 	pub token_limit: Option<u32>,
 
-	// Timeouts for item types in passed blocks
+	/// Timeout for sponsoring a token transfer in passed blocks
 	pub sponsor_transfer_timeout: Option<u32>,
+	/// Timeout for sponsoring an approval in passed blocks
 	pub sponsor_approve_timeout: Option<u32>,
+	/// Can a token be transferred by the owner
 	pub owner_can_transfer: Option<bool>,
+	/// Can a token be burned by the owner
 	pub owner_can_destroy: Option<bool>,
+	/// Can a token be transferred at all
 	pub transfers_enabled: Option<bool>,
 }
 
@@ -509,6 +520,7 @@
 #[cfg_attr(feature = "serde1", derive(Serialize, Deserialize))]
 pub enum SponsoringRateLimit {
 	SponsoringDisabled,
+	/// Once per how many blocks can sponsorship of a transaction type occur
 	Blocks(u32),
 }
 
@@ -516,6 +528,7 @@
 #[cfg_attr(feature = "serde1", derive(Serialize, Deserialize))]
 #[derivative(Debug)]
 pub struct CreateNftData {
+	/// Key-value pairs used to describe the token as metadata
 	#[cfg_attr(feature = "serde1", serde(with = "bounded::vec_serde"))]
 	#[derivative(Debug(format_with = "bounded::vec_debug"))]
 	pub properties: CollectionPropertiesVec,
@@ -524,6 +537,7 @@
 #[derive(Encode, Decode, MaxEncodedLen, Default, Debug, Clone, PartialEq, TypeInfo)]
 #[cfg_attr(feature = "serde1", derive(Serialize, Deserialize))]
 pub struct CreateFungibleData {
+	/// Number of fungible tokens minted
 	pub value: u128,
 }
 
@@ -534,6 +548,7 @@
 	#[cfg_attr(feature = "serde1", serde(with = "bounded::vec_serde"))]
 	#[derivative(Debug(format_with = "bounded::vec_debug"))]
 	pub const_data: BoundedVec<u8, CustomDataLimit>,
+	/// Number of pieces the RFT is split into
 	pub pieces: u128,
 }
 
@@ -553,6 +568,7 @@
 	ReFungible(CreateReFungibleData),
 }
 
+/// Explicit NFT creation data with meta parameters
 #[derive(Encode, Decode, MaxEncodedLen, PartialEq, Clone, TypeInfo, Derivative)]
 #[derivative(Debug)]
 pub struct CreateNftExData<CrossAccountId> {
@@ -561,6 +577,7 @@
 	pub owner: CrossAccountId,
 }
 
+/// Explicit RFT creation data with meta parameters
 #[derive(Encode, Decode, MaxEncodedLen, PartialEq, Clone, TypeInfo, Derivative)]
 #[derivative(Debug(bound = "CrossAccountId: fmt::Debug + Ord"))]
 pub struct CreateRefungibleExData<CrossAccountId> {
@@ -570,6 +587,7 @@
 	pub users: BoundedBTreeMap<CrossAccountId, u128, ConstU32<MAX_ITEMS_PER_BATCH>>,
 }
 
+/// Explicit item creation data with meta parameters, namely the owner
 #[derive(Encode, Decode, MaxEncodedLen, PartialEq, Clone, TypeInfo, Derivative)]
 #[derivative(Debug(bound = "CrossAccountId: fmt::Debug + Ord"))]
 pub enum CreateItemExData<CrossAccountId> {
@@ -617,6 +635,7 @@
 	}
 }
 
+/// Token's address, dictated by its collection and token IDs
 #[derive(Encode, Decode, MaxEncodedLen, PartialEq, Clone, Debug, TypeInfo)]
 #[cfg_attr(feature = "serde1", derive(Serialize, Deserialize))]
 // todo possibly rename to be used generally as an address pair

--- a/tests/src/interfaces/unique/definitions.ts
+++ b/tests/src/interfaces/unique/definitions.ts
@@ -43,13 +43,13 @@
     accountTokens: fun('Get tokens owned by account', [collectionParam, crossAccountParam()], 'Vec<u32>'),
     collectionTokens: fun('Get tokens contained in collection', [collectionParam], 'Vec<u32>'),
 
-    lastTokenId: fun('Get last token id', [collectionParam], 'u32'),
+    lastTokenId: fun('Get last token ID created in a collection', [collectionParam], 'u32'),
     totalSupply: fun('Get amount of unique collection tokens', [collectionParam], 'u32'),
-    accountBalance: fun('Get amount of different user tokens', [collectionParam, crossAccountParam()], 'u32'),
-    balance: fun('Get amount of specific account token', [collectionParam, crossAccountParam(), tokenParam], 'u128'),
+    accountBalance: fun('Get owned amount of any user tokens', [collectionParam, crossAccountParam()], 'u32'),
+    balance: fun('Get owned amount of specific account token', [collectionParam, crossAccountParam(), tokenParam], 'u128'),
     allowance: fun('Get allowed amount', [collectionParam, crossAccountParam('sender'), crossAccountParam('spender'), tokenParam], 'u128'),
     tokenOwner: fun('Get token owner', [collectionParam, tokenParam], `Option<${CROSS_ACCOUNT_ID_TYPE}>`),
-    topmostTokenOwner: fun('Get token owner, in case of nested token - find parent recursive', [collectionParam, tokenParam], `Option<${CROSS_ACCOUNT_ID_TYPE}>`),
+    topmostTokenOwner: fun('Get token owner, in case of nested token - find the parent recursively', [collectionParam, tokenParam], `Option<${CROSS_ACCOUNT_ID_TYPE}>`),
     tokenChildren: fun('Get tokens nested directly into the token', [collectionParam, tokenParam], 'Vec<UpDataStructsTokenChild>'),
     constMetadata: fun('Get token constant metadata', [collectionParam, tokenParam], 'Vec<u8>'),
     variableMetadata: fun('Get token variable metadata', [collectionParam, tokenParam], 'Vec<u8>'),
@@ -74,7 +74,7 @@
       'UpDataStructsTokenData',
     ),
     tokenExists: fun('Check if token exists', [collectionParam, tokenParam], 'bool'),
-    collectionById: fun('Get collection by specified id', [collectionParam], 'Option<UpDataStructsRpcCollection>'),
+    collectionById: fun('Get collection by specified ID', [collectionParam], 'Option<UpDataStructsRpcCollection>'),
     collectionStats: fun('Get collection stats', [], 'UpDataStructsCollectionStats'),
     allowed: fun('Check if user is allowed to use collection', [collectionParam, crossAccountParam()], 'bool'),
     nextSponsored: fun('Get number of blocks when sponsored transaction is available', [collectionParam, crossAccountParam(), tokenParam], 'Option<u64>'),