Unable to use Object.values() with Flow

[rishabh-ink]

Flow does not allow using…

const lightLevelsArray = Object.values(lightLevels);

… because of facebook/flow #2221 "When using Object as maps, Object.values treats values as mixed".

Thus, the values need to be repeated as…

const lightLevelArray = ['normal', 'dim', 'washed'];

… even though we’ve defined a frozen Object…

export const availableLightLevels: {|
  NORMAL: string,
  DIM: string,
  WASHED: string,
|} = Object.freeze({
  NORMAL: 'normal',
  DIM: 'dim',
  WASHED: 'washed',
});