feat: identifier whitelist documentation

optimistic_oracle/src/contracts/data_verification/identifier_whitelist.cairo

@@ -1,5 +1,8 @@
+/// Store whitelist of supported identifiers, unique piece of information that the oracle provide result for. 
+
 #[starknet::contract]
 pub mod identifier_whitelist {
+    use starknet::ContractAddress;
     use core::starknet::event::EventEmitter;
     use openzeppelin::access::ownable::ownable::OwnableComponent::InternalTrait;
     use optimistic_oracle::contracts::interfaces::IIdentifierWhitelist;
@@ -9,7 +12,6 @@ pub mod identifier_whitelist {
     impl OwnableImpl = OwnableComponent::OwnableImpl<ContractState>;
     impl OwnableInternalImpl = OwnableComponent::InternalImpl<ContractState>;
 
-
     #[storage]
     struct Storage {
         supported_identifiers: LegacyMap::<felt252, bool>,
@@ -38,8 +40,20 @@ pub mod identifier_whitelist {
         pub identifier: felt252,
     }
 
+    #[constructor]
+    fn constructor(ref self: ContractState, owner: ContractAddress) {
+        self.ownable.initializer(owner);
+    }
 
+
+    #[abi(embed_v0)]
     impl IIdentifierWhitelistImpl of IIdentifierWhitelist<ContractState> {
+        /// Add the provided identifier as supported identifier 
+        /// Dev: callable only by the admin 
+        /// 
+        /// # Arguments 
+        /// 
+        /// * `identifier` - an unique representation of the feed being added
         fn add_supported_identifier(ref self: ContractState, identifier: felt252) {
             self.ownable.assert_only_owner();
             if (!self.supported_identifiers.read(identifier)) {
@@ -48,6 +62,12 @@ pub mod identifier_whitelist {
             self.emit(SupportedIdentifierAdded { identifier });
         }
 
+        /// Remove the provided identifier as supported identifier 
+        /// Dev: callable only by the admin 
+        /// 
+        /// # Arguments 
+        /// 
+        /// * `identifier` - an unique representation of the feed being removed
         fn remove_supported_identifier(ref self: ContractState, identifier: felt252) {
             self.ownable.assert_only_owner();
             if (self.supported_identifiers.read(identifier)) {
@@ -56,6 +76,11 @@ pub mod identifier_whitelist {
             self.emit(SupportedIdentifierRemoved { identifier });
         }
 
+        /// Check if a given identifier is supported or not.  
+        /// 
+        /// # Arguments 
+        /// 
+        /// * `identifier` - the identifier to check the information for
         fn is_identifier_supported(self: @ContractState, identifier: felt252) -> bool {
             self.supported_identifiers.read(identifier)
         }