code: def evaluate_earliest_arrival_time_at_target(self, dep_time, transfer_margin):
          
          minimum = dep_time + self._walk_to_target_duration
          dep_time_plus_transfer_margin = dep_time + transfer_margin
          for label in self._labels:
              if label.departure_time >= dep_time_plus_transfer_margin and label.arrival_time_target < minimum:
                  minimum = label.arrival_time_target
          return float(minimum)
docs: Get the earliest arrival time at the target, given a departure time.
  
          Parameters
          ----------
          dep_time : float, int
              time in unix seconds
          transfer_margin: float, int
              transfer margin in seconds
  
          Returns
          -------
          arrival_time : float
              Arrival time in the given time unit (seconds after unix epoch).