updateBoundingSteps method
Get new bounding extents to the ticks that would contain the given timeExtents.
Implementation
@override
DateTimeExtents updateBoundingSteps(DateTimeExtents timeExtent) {
final stepBefore = getStepTimeBeforeInclusive(timeExtent.start, 1);
final stepAfter = getStepTimeAfterInclusive(timeExtent.end, 1);
return DateTimeExtents(start: stepBefore, end: stepAfter);
}