Organistion.sol calling interface

import "ITokenLedger.sol";

contract Organisation
{
  ITokenLedger public tokenLedger;

  function Organisation(address _tokenLedger) {
    tokenLedger = ITokenLedger(_tokenLedger);
  }
  
  function setTokenLedgerAddress(address _tokenLedger)
  {
    tokenLedger = ITokenLedger(_tokenLedger);
  }

  function generateTokens(uint256 _amount)
  {
    tokenLedger.generateTokens(_amount);
  }
}