get padding() {
    return this.padding_;
  }
Padding (in css pixels).
If the map viewport is partially covered with other content (overlays) along
its edges, this setting allows to shift the center of the viewport away from that
content. The order of the values in the array is top, right, bottom, left.
The default is no padding, which is equivalent to `[0, 0, 0, 0]`.
@type {Array<number>|undefined}
@api