1  import sys
   2  from typing import IO, Optional, Union
   3  
   4  if sys.version_info < (3,):
   5      _encodable = Union[bytes, unicode]
   6      _decodable = Union[bytes, unicode]
   7  else:
   8      _encodable = bytes
   9      _decodable = Union[bytes, str]
  10  
  11  def b64encode(s: _encodable, altchars: Optional[bytes] = ...) -> bytes: ...
  12  def b64decode(s: _decodable, altchars: Optional[bytes] = ..., validate: bool = ...) -> bytes: ...
  13  def standard_b64encode(s: _encodable) -> bytes: ...
  14  def standard_b64decode(s: _decodable) -> bytes: ...
  15  def urlsafe_b64encode(s: _encodable) -> bytes: ...
  16  def urlsafe_b64decode(s: _decodable) -> bytes: ...
  17  def b32encode(s: _encodable) -> bytes: ...
  18  def b32decode(s: _decodable, casefold: bool = ..., map01: Optional[bytes] = ...) -> bytes: ...
  19  def b16encode(s: _encodable) -> bytes: ...
  20  def b16decode(s: _decodable, casefold: bool = ...) -> bytes: ...
  21  
  22  if sys.version_info >= (3, 4):
  23      def a85encode(b: _encodable, *, foldspaces: bool = ..., wrapcol: int = ..., pad: bool = ..., adobe: bool = ...) -> bytes: ...
  24      def a85decode(b: _decodable, *, foldspaces: bool = ..., adobe: bool = ..., ignorechars: Union[str, bytes] = ...) -> bytes: ...
  25      def b85encode(b: _encodable, pad: bool = ...) -> bytes: ...
  26      def b85decode(b: _decodable) -> bytes: ...
  27  
  28  def decode(input: IO[bytes], output: IO[bytes]) -> None: ...
  29  def encode(input: IO[bytes], output: IO[bytes]) -> None: ...
  30  
  31  if sys.version_info >= (3,):
  32      def encodebytes(s: bytes) -> bytes: ...
  33      def decodebytes(s: bytes) -> bytes: ...
  34  
  35  if sys.version_info < (3, 9):
  36      def encodestring(s: bytes) -> bytes: ...
  37      def decodestring(s: bytes) -> bytes: ...
  38