Renders query results as a numbered JSON object where each row is a keyed dictionary of field-name/value pairs.
JSONRAW — set as ReportType in def_report.
def Render(self, Param1="", Param2="", Param3="") -> str:
Returns a JSON string (not HTML). Each row is stored under an integer key starting at 1; each column within the row is stored under its lowercased field name.