src/vs/workbench/api/common/extHostWebview.ts/ExtHostWebview/options
class ExtHostWebview:	public set options(newOptions: vscode.WebviewOptions) {
		this.assertNotDisposed();
		this.#proxy.$setOptions(this.#handle, serializeWebviewOptions(this.#extension, this.#workspace, newOptions));
		this.#options = newOptions;
	}