fix contract

abis/YTPriceFeed.json

@@ -76,6 +76,11 @@
     "name": "SpreadTooHigh",
     "type": "error"
   },
+  {
+    "inputs": [],
+    "name": "StalePrice",
+    "type": "error"
+  },
   {
     "inputs": [],
     "name": "UUPSUnauthorizedCallContext",
@@ -440,6 +445,19 @@
     "stateMutability": "view",
     "type": "function"
   },
+  {
+    "inputs": [],
+    "name": "priceStalenesThreshold",
+    "outputs": [
+      {
+        "internalType": "uint256",
+        "name": "",
+        "type": "uint256"
+      }
+    ],
+    "stateMutability": "view",
+    "type": "function"
+  },
   {
     "inputs": [],
     "name": "proxiableUUID",
@@ -484,6 +502,19 @@
     "stateMutability": "nonpayable",
     "type": "function"
   },
+  {
+    "inputs": [
+      {
+        "internalType": "uint256",
+        "name": "_threshold",
+        "type": "uint256"
+      }
+    ],
+    "name": "setPriceStalenessThreshold",
+    "outputs": [],
+    "stateMutability": "nonpayable",
+    "type": "function"
+  },
   {
     "inputs": [
       {