fix: add uniswap extended uniswap methods

contracts/protocol/extensions/adapters/AMulticall.sol

@@ -1,15 +1,25 @@
-// SPDX-License-Identifier: Apache-2.0-or-later
+// SPDX-License-Identifier: GPL-2.0-or-later
 
 // solhint-disable-next-line
 pragma solidity 0.8.17;
 
 import "./interfaces/IAMulticall.sol";
 
 /// @title AMulticall - Allows sending mulple transactions to the pool.
-/// @notice As per https://github.com/Uniswap/v3-periphery/blob/main/contracts/base/Multicall.sol
+/// @notice As per https://github.com/Uniswap/swap-router-contracts/blob/main/contracts/base/MulticallExtended.sol
 contract AMulticall is IAMulticall {
+    modifier checkDeadline(uint256 deadline) {
+        require(_blockTimestamp() <= deadline, 'AMULTICALL_DEADLINE_PAST_ERROR');
+        _;
+    }
+
+    modifier checkPreviousBlockhash(bytes32 previousBlockhash) {
+        require(blockhash(block.number - 1) == previousBlockhash, 'AMULTICALL_BLOCKHASH_ERROR');
+        _;
+    }
+
     /// @inheritdoc IAMulticall
-    function multicall(bytes[] calldata data) external override returns (bytes[] memory results) {
+    function multicall(bytes[] calldata data) public override returns (bytes[] memory results) {
         results = new bytes[](data.length);
         for (uint256 i = 0; i < data.length; i++) {
             (bool success, bytes memory result) = address(this).delegatecall(data[i]);
@@ -26,4 +36,32 @@ contract AMulticall is IAMulticall {
             results[i] = result;
         }
     }
+
+    /// @inheritdoc IAMulticall
+    function multicall(uint256 deadline, bytes[] calldata data)
+        external
+        payable
+        override
+        checkDeadline(deadline)
+        returns (bytes[] memory)
+    {
+        return multicall(data);
+    }
+
+    /// @inheritdoc IAMulticall
+    function multicall(bytes32 previousBlockhash, bytes[] calldata data)
+        external
+        payable
+        override
+        checkPreviousBlockhash(previousBlockhash)
+        returns (bytes[] memory)
+    {
+        return multicall(data);
+    }
+
+    /// @dev Method that exists purely to be overridden for tests
+    /// @return The current block timestamp
+    function _blockTimestamp() internal view virtual returns (uint256) {
+        return block.timestamp;
+    }
 }