Some fixes

types/Tile/RadioTileGroup.d.ts

@@ -0,0 +1,30 @@
+/// <reference types="svelte" />
+
+export interface RadioTileGroupProps extends svelte.JSX.HTMLAttributes<HTMLElementTagNameMap["fieldset"]> {
+  /**
+   * Specify the selected tile value
+   */
+  selectedValue?: string;
+
+  /**
+   * Set to `true` to disable the tile group
+   * @default false
+   */
+  disabled?: boolean;
+
+  /**
+   * Specify the legend text
+   * @default ""
+   */
+  legend?: string;
+}
+
+export default class RadioTileGroup {
+  $$prop_def: RadioTileGroupProps;
+  $$slot_def: {
+    default: {};
+  };
+
+  $on(eventname: "select", cb: (event: CustomEvent<any>) => void): () => void;
+  $on(eventname: string, cb: (event: Event) => void): () => void;
+}