Python method to call the AUTOREG procedure

        Documentation link:

        :param data: SASdata object or string. This parameter is required.
        :parm by: The by variable can be a string or list type.
        :parm cls: The cls variable can be a string or list type. It refers to the categorical, or nominal variables.
        :parm hetero: The hetero variable can only be a string type.
        :parm model: The model variable can only be a string type.
        :parm nloptions: The nloptions variable can only be a string type.
        :parm output: The output variable can be a string, boolean or SASdata type. The member name for a boolean is "_output".
        :parm restrict: The restrict variable can only be a string type.
        :parm test: The test 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 autoreg(self, data: ['SASdata', str] = None,
                by: [str, list] = None,
                cls: [str, list] = None,
                hetero: str = None,
                model: str = None,
                nloptions: str = None,
                output: [str, bool, 'SASdata'] = None,
                restrict: str = None,
                test: str = None,
                procopts: str = None,
                stmtpassthrough: str = None,
                **kwargs: dict) -> 'SASresults':
        """
        Python method to call the AUTOREG procedure

        Documentation link:

        :param data: SASdata object or string. This parameter is required.
        :parm by: The by variable can be a string or list type.
        :parm cls: The cls variable can be a string or list type. It refers to the categorical, or nominal variables.
        :parm hetero: The hetero variable can only be a string type.
        :parm model: The model variable can only be a string type.
        :parm nloptions: The nloptions variable can only be a string type.
        :parm output: The output variable can be a string, boolean or SASdata type. The member name for a boolean is "_output".
        :parm restrict: The restrict variable can only be a string type.
        :parm test: The test 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
        """