Payroll/build/contracts/Migrations.json

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  "source": "pragma solidity ^0.4.2;\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  function Migrations() 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",
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