ash v1.51.2
ash

Ash.Resource.Info.primary_action-exclamation-mark

You're seeing just the function primary_action-exclamation-mark, go back to Ash.Resource.Info module for more information.
Link to this function

primary_action!(resource, type)

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Specs

primary_action!(Ash.Resource.t(), Ash.Resource.Actions.action_type()) ::
  Ash.Resource.Actions.action() | no_return()

Returns the primary action of the given type