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2020 IEXEC BLOCKCHAIN TECH *\n * *\n * Licensed under the Apache License, Version 2.0 (the \"License\"); *\n * you may not use this file except in compliance with the License. *\n * You may obtain a copy of the License at *\n * *\n * http://www.apache.org/licenses/LICENSE-2.0 *\n * *\n * Unless required by applicable law or agreed to in writing, software *\n * distributed under the License is distributed on an \"AS IS\" BASIS, *\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. *\n * See the License for the specific language governing permissions and *\n * limitations under the License. *\n ******************************************************************************/\n\npragma solidity >=0.4.21;\n\ncontract Migrations {\n address public owner;\n uint public last_completed_migration;\n\n constructor() public {\n owner = msg.sender;\n }\n\n modifier restricted() {\n if (msg.sender == owner) _;\n }\n\n function setCompleted(uint completed) public restricted 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