from typing import Any, Text

greenlet: Any

class IterIO:
    def __new__(cls, obj, sentinel: Text | bytes = ...): ...
    def __iter__(self): ...
    def tell(self): ...
    def isatty(self): ...
    def seek(self, pos, mode: int = ...): ...
    def truncate(self, size: Any | None = ...): ...
    def write(self, s): ...
    def writelines(self, list): ...
    def read(self, n: int = ...): ...
    def readlines(self, sizehint: int = ...): ...
    def readline(self, length: Any | None = ...): ...
    def flush(self): ...
    def __next__(self): ...

class IterI(IterIO):
    sentinel: Any
    def __new__(cls, func, sentinel: Text | bytes = ...): ...
    closed: Any
    def close(self): ...
    def write(self, s): ...
    def writelines(self, list): ...
    def flush(self): ...

class IterO(IterIO):
    sentinel: Any
    closed: Any
    pos: Any
    def __new__(cls, gen, sentinel: Text | bytes = ...): ...
    def __iter__(self): ...
    def close(self): ...
    def seek(self, pos, mode: int = ...): ...
    def read(self, n: int = ...): ...
    def readline(self, length: Any | None = ...): ...
    def readlines(self, sizehint: int = ...): ...