def change_membership(add_members: [], remove_members: [])
      self.class.change_membership(@id, add_members: add_members, remove_members: remove_members, api: @api)
      refresh_members
    end
def change_membership(add_members: [], remove_members: [])
      self.class.change_membership(@id, add_members: add_members, remove_members: remove_members, api: @api)
      refresh_members
    end
Immediatly add and/or remove members in this static group

 IMPORTANT: This method changes the group in the JSS immediately,
   there is no need to call #update/#save

 @param add_members [String, Integer, Array<String, Integer>] valid
   identifier(s) for members to add

 @param remove_members [String, Integer, Array<String, Integer>] valid
   identifier(s) for members to remove

 @param api [JSS::APIConnection] The API connetion to use, uses the default
   connection if not specified

 @return [void]