from io import BytesIO

from waitress.buffers import OverflowableBuffer
from waitress.utilities import BadRequest

class FixedStreamReceiver:
    completed: bool
    error: None
    remain: int
    buf: OverflowableBuffer
    def __init__(self, cl: int, buf: OverflowableBuffer) -> None: ...
    def __len__(self) -> int: ...
    def received(self, data: bytes) -> int: ...
    def getfile(self) -> BytesIO: ...
    def getbuf(self) -> OverflowableBuffer: ...

class ChunkedReceiver:
    chunk_remainder: int
    validate_chunk_end: bool
    control_line: bytes
    chunk_end: bytes
    all_chunks_received: bool
    trailer: bytes
    completed: bool
    error: BadRequest | None
    buf: OverflowableBuffer
    def __init__(self, buf: OverflowableBuffer) -> None: ...
    def __len__(self) -> int: ...
    def received(self, s: bytes) -> int: ...
    def getfile(self) -> BytesIO: ...
    def getbuf(self) -> OverflowableBuffer: ...