Machinist.event

You're seeing just the macro event, go back to Machinist module for more information.
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event(event, list)

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Defines an event block grouping a same-event from -> to transitions

event "form_submitted" do
  from :form1, to: :form2
  from :form2, to: :test
end
Link to this macro

event(event, arg2, arg3)

View Source (macro)

Defines an event block grouping a same-event from -> to transitions with a cond option that should receive a function that returns a new state.

event "update_score"", cond: &check_score/1 do
  from :test, to: :approved
  from :test, to: :reproved
end

defp check_score(%{score: score}) do
  if score >= 70, do: :approved, else: :reproved
end