Solidity Blogpost #1: Config Contracts, snippet 1

creditDesk.sol

import "./ICreditLineFactory.sol";

contract CreditDesk {
  address public creditLineFactoryAddress;

  function createCreditLine(CreditLineParams params) public {
    require(validParams(params), "invalid params!");
    
    ICreditLineFactory(creditLineFactoryAddress).createCreditLine(params);
  }
}