text: export function isNonNulled(value) {
      return value != null;
  }
  export const isNotNullish = isNonNulled;
  export function isNulled(value) {
      return value == null;
  }
  export const isNullish = isNulled;
  export function isObservable(value) {
      return Boolean(value &&
          typeof value === "object" &&
          typeof value["subscribe"] === "function");
  }
  export function isScheduler(value) {
      return Boolean(value && typeof value["schedule"] === "function");
  }
  //# sourceMappingURL=util.js.map