Set up a scratch pad.

packages/utility-belt/index.d.ts

@@ -1,7 +0,0 @@
-export type RequireOnly<T, Keys extends keyof T = keyof T> = Partial<T> &
-  Required<Pick<T, Keys>>;
-export declare const isError: (error: unknown) => error is Error;
-export declare const getErrorMessage: (
-  error: unknown,
-  defaultMessage: string,
-) => string;