@type t() :: %Xstate.StateMachine.Context{
  access_time: term(),
  event: term(),
  instance: term(),
  pid: pid(),
  state: term()
}

Parameters:

• pid : PID (process identifier)
• event: The event that caused the transition
• access_time: Access time
• state: The resolved machine state, after transition
• instance: Any external value you want to pass it, passed from: external