module

type Context interface {
	statefun.Context
	Message() json.RawMessage
	States() []statefun.ValueSpec

	CmdbContext() json.RawMessage
}

type Module interface {
	// Bind new function to module
	Bind(string, StatefulFunction, ...statefun.ValueSpec) error

	// RegisterAndListen register module and listen port
	RegisterAndListen(context.Context) error

	// listener port
	Port() int
	// addr for register
	Addr() string
}

type Opt func(*module)

type StatefulFunction func(Context) error