pragma solidity >=0.4.21 <0.6.0;

// Compound finance ERC20 market interface
interface ICompoundERC20 {
  function mint(uint mintAmount) external returns (uint);
  function redeemUnderlying(uint redeemAmount) external returns (uint);
  function borrow(uint borrowAmount) external returns (uint);
  function repayBorrow(uint repayAmount) external returns (uint);
  function borrowBalanceCurrent(address account) external returns (uint);
  function exchangeRateCurrent() external returns (uint);
  function transfer(address recipient, uint256 amount) external returns (bool);

  function balanceOf(address account) external view returns (uint);
  function balanceOfUnderlying(address account) external view returns (uint);
  function decimals() external view returns (uint);
  function underlying() external view returns (address);
  function exchangeRateStored() external view returns (uint);
  function supplyRatePerBlock() external view returns (uint);
}