export declare class Mim<T> {
  constructor(evaluate: (prev: Option<T>) => T, source$: Observable<T>, eq: Eq<T>)
}

readonly evaluate: (prev: Option<T>) => T

readonly source$: any

readonly eq: Eq<T>

readonly getValue: () => T

readonly setValue: (next: T) => void

readonly unsubscribe: () => void

export type TypeOf<T> = T extends Atom<infer U1>
  ? U1
  : T extends ReadonlyAtom<infer U2>
  ? U2
  : T extends Mim<infer U3>
  ? U3
  : never

export declare const protect: <T extends Atom<unknown> | ReadonlyAtom<unknown>>(a: T) => T & Mim<TypeOf<T>>