feat: add getStoredRates for pools

Author: fedorovdg

package.json

@@ -21,7 +21,8 @@
     "lint": "eslint src --ext .ts",
     "lint:fix": "eslint src --fix",
     "watch": "tsc --watch",
-    "watch:lib": "rm -rf lib && tsc --watch --project tsconfig.build.json"
+    "watch:lib": "rm -rf lib && tsc --watch --project tsconfig.build.json",
+    "test-build": "npm run build && rm -rf /Users/denisfedorov/WebstormProjects/web3/app/src/lib && cp -R lib /Users/denisfedorov/WebstormProjects/web3/app/src/lib"
   },
   "type": "module",
   "devDependencies": {

src/pools/PoolTemplate.ts

@@ -2010,6 +2010,15 @@ export class PoolTemplate extends CorePool {
         return this.wrappedCoins.map(() => BN(1))
     }
 
+    public async getStoredRates(useUnderlying = false): Promise<string[]> {
+        try {
+            const storedRatesBN = await this._storedRatesBN(useUnderlying);
+            return storedRatesBN.map(rate => rate.toString());
+        } catch (error) {
+            throw new Error(`Failed to get stored rates for pool ${this.name}: ${error instanceof Error ? error.message : 'Unknown error'}`);
+        }
+    }
+
     _underlyingPrices = async (): Promise<number[]> => {
         const promises = [];
         for (const addr of this.underlyingCoinAddresses) {