Method getMutualFollowers

* get intersection of users that follow followeeUserId and users that are followed by followerUserId * @param followeeUserId user that is followed * @example * getMutualFollowers(100, 0, 1, 1) - IDs must be valid

(
    limit = 100,
    offset = 0,
    followeeUserId: number,
    userId?: number
  )