def update_roles(role_ids)
      @roles = []
      role_ids.each do |id|
        # It is posible for members to have roles that do not exist
        # on the server any longer. See https://github.com/meew0/discordrb/issues/371
        role = @server.role(id)
        @roles << role if role
      end
    end
def update_roles(role_ids)
      @roles = []
      role_ids.each do |id|
        # It is posible for members to have roles that do not exist
        # on the server any longer. See https://github.com/meew0/discordrb/issues/371
        role = @server.role(id)
        @roles << role if role
      end
    end
Update this member's roles
 @note For internal use only.
 @!visibility private