code: func (_Chequebook *ChequebookCaller) Sent(opts *bind.CallOpts, arg0 common.Address) (*big.Int, error) {
  	var (
  		ret0 = new(*big.Int)
  	)
  	out := ret0
  	err := _Chequebook.contract.Call(opts, out, "sent", arg0)
  	return *ret0, err
  }
docs: // Sent is a free data retrieval call binding the contract method 0x7bf786f8.
  //
  // Solidity: function sent( address) constant returns(uint256)