Initialize Truffle project

contracts/Migrations.sol

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+pragma solidity ^0.4.23;
+
+contract Migrations {
+  address public owner;
+  uint public last_completed_migration;
+
+  constructor() public {
+    owner = msg.sender;
+  }
+
+  modifier restricted() {
+    if (msg.sender == owner) _;
+  }
+
+  function setCompleted(uint completed) public restricted {
+    last_completed_migration = completed;
+  }
+
+  function upgrade(address new_address) public restricted {
+    Migrations upgraded = Migrations(new_address);
+    upgraded.setCompleted(last_completed_migration);
+  }
+}

migrations/1_initial_migration.js

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+var Migrations = artifacts.require("./Migrations.sol");
+
+module.exports = function(deployer) {
+  deployer.deploy(Migrations);
+};

truffle-config.js

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+module.exports = {
+  // See <http://truffleframework.com/docs/advanced/configuration>
+  // to customize your Truffle configuration!
+};

truffle.js

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+module.exports = {
+  // See <http://truffleframework.com/docs/advanced/configuration>
+  // to customize your Truffle configuration!
+};