@type t() :: %Hell.ServerConfig{
  genserver_options: GenServer.options(),
  handler_module: module(),
  handler_options: term(),
  handshake_timeout: timeout(),
  max_connections_retry_count: non_neg_integer(),
  max_connections_retry_wait: timeout(),
  num_acceptors: pos_integer(),
  num_connections: non_neg_integer() | :infinity,
  num_listen_sockets: pos_integer(),
  port: :inet.port_number(),
  read_timeout: timeout(),
  shutdown_timeout: timeout(),
  silent_terminate_on_error: boolean(),
  supervisor_options: [Supervisor.option()],
  transport_module: Hell.transport_module(),
  transport_options: Hell.transport_options()
}