src/vs/workbench/api/common/extHostWebviewPanels.ts/ExtHostWebviewPanel/reveal
class ExtHostWebviewPanel:	public reveal(viewColumn?: vscode.ViewColumn, preserveFocus?: boolean): void {
		this.assertNotDisposed();
		this.#proxy.$reveal(this.#handle, {
			viewColumn: viewColumn ? typeConverters.ViewColumn.from(viewColumn) : undefined,
			preserveFocus: !!preserveFocus
		});
	}