def METHOD_NAME(self, dt):
    """Advance the time in the record by a time step duration.
    This method creates a new record entry. The new entry includes the time
    and all variables have a value of nan for this time. The time of the
    entry is the sum of the latest time of the record and the time step
    duration, ``dt``.
    Parameters
    ----------
    dt : float or int
        The time step duration to advance time in the record.
    """
    self._dict["time"].append(self.latest_time + dt)
    for var in self.variables:
        self._dict[var].append(np.nan)