Python method to call the ARIMA procedure

        Documentation link:
        http://support.sas.com/documentation/cdl//en/etsug/68148/HTML/default/viewer.htm#etsug_arima_syntax.htm

        :param data: SASdata object or string. This parameter is required.
        :parm by: The by variable can only be a string type.
        :parm estimate: The estimate variable can only be a string type.
        :parm forecast: The forecast variable can only be a string type.
        :parm identify: The identify variable can only be a string type.
        :parm out: The out variable can be a string or SASdata type.
        :parm outlier: The outlier variable can only be a string type.
        :parm procopts: The procopts variable is a generic option available for advanced use. It can only be a string type.
        :parm stmtpassthrough: The stmtpassthrough variable is a generic option available for advanced use. It can only be a string type.
        :return: SAS Result Object

def arima(self, data: ['SASdata', str] = None,
              by: str = None,
              estimate: str = None,
              forecast: str = None,
              identify: str = None,
              out: [str, 'SASdata'] = None,
              outlier: str = None,
              procopts: str = None,
              stmtpassthrough: str = None,
              **kwargs: dict) -> 'SASresults':
        """
        Python method to call the ARIMA procedure

        Documentation link:
        http://support.sas.com/documentation/cdl//en/etsug/68148/HTML/default/viewer.htm#etsug_arima_syntax.htm

        :param data: SASdata object or string. This parameter is required.
        :parm by: The by variable can only be a string type.
        :parm estimate: The estimate variable can only be a string type.
        :parm forecast: The forecast variable can only be a string type.
        :parm identify: The identify variable can only be a string type.
        :parm out: The out variable can be a string or SASdata type.
        :parm outlier: The outlier variable can only be a string type.
        :parm procopts: The procopts variable is a generic option available for advanced use. It can only be a string type.
        :parm stmtpassthrough: The stmtpassthrough variable is a generic option available for advanced use. It can only be a string type.
        :return: SAS Result Object
        """