memoise

type CallbackFn func() (any, error)

type Memoise interface {
	// Check returns the memoised value for the given key if available.
	// Otherwise it calls the provided callback to compute the value,
	// stores the result, and returns it.
	// Thread-safe.
	Check(string, CallbackFn) (any, error)

	// Clear the contents of the memoise map.
	Reset()
}