Liberator.Resource.handle_precondition_failed

You're seeing just the callback handle_precondition_failed, go back to Liberator.Resource module for more information.
Link to this callback

handle_precondition_failed(arg1)

View Source (since 1.0)

Specs

handle_precondition_failed(Plug.Conn.t()) :: Plug.Conn.t()

Returns content for a 412 Precondition Failed response.