module Nostr
  class Client
    include EventEmitter

    def initialize: -> void
    def connect: (Relay relay) -> Thread
    def subscribe: (?subscription_id: String, ?filter: Filter) -> Subscription
    def unsubscribe: (String subscription_id) -> untyped
    def publish: (Event event) -> untyped

    private

    attr_reader subscriptions: Hash[String, Subscription]
    attr_reader parent_to_child_channel: untyped
    attr_reader child_to_parent_channel: untyped

    def execute_within_an_em_thread: { -> untyped } -> Thread
    def initialize_channels: -> untyped
  end
end