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+/*
+
+ 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;
+pragma experimental ABIEncoderV2;
+
+import "./IAuthorizable.sol";
+
+contract IAssetProxy is
+ IAuthorizable
+{
+
+ /// @dev Transfers assets. Either succeeds or throws.
+ /// @param assetData Byte array encoded for the respective asset proxy.
+ /// @param from Address to transfer asset from.
+ /// @param to Address to transfer asset to.
+ /// @param amount Amount of asset to transfer.
+ function transferFrom(
+ bytes assetData,
+ address from,
+ address to,
+ uint256 amount
+ )
+ external;
+
+ /// @dev Gets the proxy id associated with the proxy address.
+ /// @return Proxy id.
+ function getProxyId()
+ external
+ pure
+ returns (bytes4);
+}