1 files changed, 53 insertions, 0 deletions
diff --git a/packages/contracts/src/2.0.0/forwarder/interfaces/IAssets.sol b/packages/contracts/src/2.0.0/forwarder/interfaces/IAssets.sol
new file mode 100644
index 000000000..27adb1221
--- /dev/null
+++ b/packages/contracts/src/2.0.0/forwarder/interfaces/IAssets.sol
@@ -0,0 +1,53 @@
+/*
+
+  Copyright 2018 ZeroEx Intl.
+
+  Licensed under the Apache License, Version 2.0 (the "License");
+  you may not use this file except in compliance with the License.
+  You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+
+*/
+
+pragma solidity 0.4.24;
+
+
+contract IAssets {
+
+    /// @dev Withdraws ERC20 tokens from this contract. The contract requires a ZRX balance in order to 
+    ///      function optimally, and this function allows the ZRX to be withdrawn by owner. It may also be
+    ///      used to withdraw tokens that were accidentally sent to this contract.
+    /// @param token Address of ERC20 token to withdraw.
+    /// @param amount Amount of ERC20 token to withdraw.
+    function withdrawERC20(
+        address token,
+        uint256 amount
+    )
+        external;
+
+    function onERC721Received(
+        address,
+        uint256,
+        bytes memory
+    )
+        public
+        pure
+        returns(bytes4);
+
+    function onERC721Received(
+        address,
+        address,
+        uint256,
+        bytes memory
+    )
+        public
+        pure
+        returns(bytes4);
+}
+\ No newline at end of file