code: public DataSetBuilder sequence(String column, Time initial, int step) {
      ensureArgNotNull(initial);
      return sequence(column, initial, t -> new Time(t.getTime() + step * 1000L));
    }
docs: Set {@link Time} sequence filler for column
  with a specified step in seconds.
  
  <p>
  A call to this method is shorthand for
  <code>sequence(column, initial, t -&gt; new Time(t.getTime() + step * 1000L))</code> .
  </p>
  
  @param column Column day.
  @param initial Initial date.
  @param step Step in seconds.
  @return The builder instance (for chained calls).
  
  @see #sequence(String, Date, int)
  @see #sequence(String, Timestamp, long)
  @see #sequence(String, Object, UnaryOperator)