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"source": "pragma solidity ^0.5.0;\n\ncontract Migrations {\n address public owner;\n uint public last_completed_migration;\n\n modifier restricted() {\n if (msg.sender == owner) _;\n }\n\n constructor() public {\n owner = msg.sender;\n }\n\n function setCompleted(uint completed) public restricted {\n last_completed_migration = completed;\n }\n\n function upgrade(address new_address) public restricted {\n Migrations upgraded = Migrations(new_address);\n upgraded.setCompleted(last_completed_migration);\n }\n}\n", "sourcePath": "/Users/makoto/work/ens/dnsregistrar/contracts/Migrations.sol", "ast": { "absolutePath": "/Users/makoto/work/ens/dnsregistrar/contracts/Migrations.sol", "exportedSymbols": { "Migrations": [ 660 ] }, "id": 661, "nodeType": "SourceUnit", "nodes": [ { "id": 605, "literals": [ "solidity", "^", "0.5", ".0" ], "nodeType": "PragmaDirective", "src": "0:23:2" }, { "baseContracts": [], "contractDependencies": [], "contractKind": "contract", "documentation": null, 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