export declare namespace MaskMode {
  /**
   * How masks interact with each other. See https://helpx.adobe.com/after-effects/using/alpha-channels-masks-mattes.html
   */
  type Value = No | Add | Subtract | Intersect | Lighten | Darken | Difference;

  type No = 'n';
  type Add = 'a';
  type Subtract = 's';
  type Intersect = 'i';
  type Lighten = 'l';
  type Darken = 'd';
  type Difference = 'f';

  const enum VALUE {
    NO = 'n',
    ADD = 'a',
    SUBTRACT = 's',
    INTERSECT = 'i',
    LIGHTEN = 'l',
    DARKEN = 'd',
    DIFFERENCE = 'f',
  }
}