src/vs/base/browser/ui/splitview/paneview.ts/PaneView/resizePane
class PaneView:	resizePane(pane: Pane, size: number): void {
		const index = this.paneItems.findIndex(item => item.pane === pane);

		if (index === -1) {
			return;
		}

		this.splitview.resizeView(index, size);
	}