@type t() :: %DockerEngineAPI.Model.SwarmInfo{
  Cluster: DockerEngineAPI.Model.ClusterInfo.t() | nil,
  ControlAvailable: boolean() | nil,
  Error: String.t() | nil,
  LocalNodeState: DockerEngineAPI.Model.LocalNodeState.t() | nil,
  Managers: integer() | nil,
  NodeAddr: String.t() | nil,
  NodeID: String.t() | nil,
  Nodes: integer() | nil,
  RemoteManagers: [DockerEngineAPI.Model.PeerNode.t()] | nil
}