@type t() :: %LiveLoad.Cluster.Node{
  available_memory: pos_integer(),
  logical_processors: pos_integer() | nil,
  logical_processors_available: pos_integer() | nil,
  logical_processors_online: pos_integer() | nil,
  node: node(),
  ref: reference(),
  schedulers_online: pos_integer(),
  total_memory: pos_integer(),
  tracked_pid: pid() | nil
}