1interface Toggleable<T> {
 2  inactive: T
 3  active: T,
 4}
 5
 6export function toggleable<T>(inactive: T, modifications: Partial<Toggleable<T>>): Toggleable<T> {
 7  let active: T = inactive;
 8  if (modifications.active !== undefined) {
 9    active = { ...inactive, ...modifications.active };
10  }
11  return {
12    inactive: inactive,
13    active: active
14  };
15
16  d
17}