export type Overwrite<T, U> = Pick<T, Exclude<keyof T, keyof U>> & U;
export type Delete<T, U> = Pick<T, Exclude<keyof T, U>>;
export type OverwriteFnReturnType<F extends (...args: any) => void, R> = (...args: Parameters<F>) => Delete<ReturnType<F>, R>;
export type ConditionallyMergeRecordTypes<C, S extends Record<string, any>> = C extends null ? S : C & S;