import io
from typing import Any, Optional


class SerialBase(io.RawIOBase):
    """\
    Serial port base class. Provides __init__ function and properties to
    get/set port settings.
    """

    def __init__(
        self,
        port: Optional[str] = ...,
        baudrate: Optional[int] = ...,
        **kwargs: Any
    ) -> None:
        """Initialize comm port object. If a "port" is given, then the port
        will be opened immediately. Otherwise a Serial port object in closed
        state is returned.
        """
        ...

    @property
    def baudrate(self) -> int: ...

    @baudrate.setter
    def baudrate(self) -> None: ...

    def setRTS(self, value: Optional[bool] = ...) -> None:
        ...

    def setDTR(self, value: Optional[bool] = ...) -> None:
        ...

    @property
    def is_open(self) -> bool:
        ...