state() :: :active | :suspended | :terminated | :completed

t() :: %Flexflow.Process{
  context: Flexflow.Context.t(),
  events: [Flexflow.Event.t()],
  graph: Graph.t(),
  module: module(),
  name: String.t() | nil,
  nodes: Flexflow.nodes(),
  state: state(),
  transitions: Flexflow.transitions()
}