'Generates the data to be displayed in the report.
Args:
get_report_args: ApiGetReportArgs passed from
ApiListReportsHandler.
token: The authorization token, also passed from ApiListReportsHandler.
Raises:
NotImplementedError: If not overriden.
Returns:
ApiReportData'

def GetReportData(self, get_report_args, token):

    raise NotImplementedError()
