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first_attribute: Is an optional attribute. Used for adding addition additional information to a report query. Special values are <CURRENT_DATE> and <CURRENT_DATE>-30. When used, CURRENT_DATE will have the actual date of the request substituted and (if specified) 30 days removed.
format: Valid values are csv, excel, xml, json, html, html_formatted. The difference between html and html_formatted being the former is a straight dump of the columns into table format where-as html_formatted results in a table formatted as per the Open-AudIT web interface and is typically prettier to view.
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