from datetime import datetime, date, time

from typing import Any, Dict, Tuple, Iterable, List, Optional, Union, Sequence

Scalar = Union[int, float, str, datetime, date, time]
Result = Union[Tuple[Scalar, ...], Dict[str, Scalar]]

class Connection(object):
    def __init__(self, user, password, host, database, timeout,
                 login_timeout, charset, as_dict) -> None: ...
    def autocommit(self, status: bool) -> None: ...
    def close(self) -> None: ...
    def commit(self) -> None: ...
    def cursor(self) -> 'Cursor': ...
    def rollback(self) -> None: ...

class Cursor(object):
    def __init__(self) -> None: ...
    def __iter__(self): ...
    def __next__(self) -> Any: ...
    def callproc(self, procname: str, **kwargs) -> None: ...
    def close(self) -> None: ...
    def execute(self, stmt: str,
                params: Optional[Union[Scalar, Tuple[Scalar, ...],
                                       Dict[str, Scalar]]]) -> None: ...
    def executemany(self, stmt: str,
                    params: Optional[Sequence[Tuple[Scalar, ...]]]) -> None: ...
    def fetchall(self) -> List[Result]: ...
    def fetchmany(self, size: Optional[int]) -> List[Result]: ...
    def fetchone(self) -> Result: ...

def connect(server: Optional[str],
            user: Optional[str],
            password: Optional[str],
            database: Optional[str],
            timeout: Optional[int],
            login_timeout: Optional[int],
            charset: Optional[str],
            as_dict: Optional[bool],
            host: Optional[str],
            appname: Optional[str],
            port: Optional[str],

            conn_properties: Optional[Union[str, Sequence[str]]],
            autocommit: Optional[bool],
            tds_version: Optional[str]) -> Connection: ...
def get_max_connections() -> int: ...
def set_max_connections(n: int) -> None: ...