def role(id)
      id = id.resolve_id
      @roles.find { |e| e.id == id }
    end
def role(id)
      id = id.resolve_id
      @roles.find { |e| e.id == id }
    end
Gets a role on this server based on its ID.
 @param id [Integer, String, #resolve_id] The role ID to look for.