# Added only to satisfy the Steep requirements. Not 100% reliable.
module EventMachine
  class Channel
    @subs: Hash[untyped, untyped]
    @uid: Integer

    def initialize: -> void
    def num_subscribers: -> Integer
    def subscribe: (*untyped a) ?{ (untyped) -> untyped } -> Integer
    def unsubscribe: (untyped name) -> untyped
    def push: (*untyped items) -> untyped
    alias << push
    def pop: (*untyped a) -> untyped

    private
    def gen_id: -> Integer
  end
end