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pragma solidity ^0.4.15;
contract Migrations {
address public owner;
uint public last_completed_migration;
modifier restricted() {
require(msg.sender == owner);
function Migrations() public {
owner = msg.sender;
function setCompleted(uint completed) public restricted {
last_completed_migration = completed;
function upgrade(address newAddress) public restricted {
Migrations upgraded = Migrations(newAddress);
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