NervesKey.put_raw_settings

You're seeing just the function put_raw_settings, go back to NervesKey module for more information.
Link to this function

put_raw_settings(transport, raw_settings)

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Specs

put_raw_settings(ATECC508A.Transport.t(), binary()) :: :ok

Store raw settings on the Nerves Key

This overwrites all of the settings and should be used with care since there's no protection against race conditions with other users of this API.