4242
4343# typing ---------------------------------------------------------------------------
4444
45- from typing import Any ,BinaryIO ,Callable ,Dict ,Mapping ,Sequence ,TYPE_CHECKING ,Union
45+ from typing import Any ,BinaryIO ,Callable ,Dict ,List , Mapping ,Sequence ,TYPE_CHECKING ,Union
4646
4747from git .types import PathLike ,TBD
4848
@@ -443,7 +443,7 @@ class CatFileContentStream(object):
443443
444444__slots__ = ('_stream' ,'_nbr' ,'_size' )
445445
446- def __init__ (self ,size ,stream ) :
446+ def __init__ (self ,size : int ,stream : BinaryIO ) -> None :
447447self ._stream = stream
448448self ._size = size
449449self ._nbr = 0 # num bytes read
@@ -454,7 +454,7 @@ def __init__(self, size, stream):
454454stream .read (1 )
455455# END handle empty streams
456456
457- def read (self ,size = - 1 ):
457+ def read (self ,size : int = - 1 )-> bytes :
458458bytes_left = self ._size - self ._nbr
459459if bytes_left == 0 :
460460return b''
@@ -474,7 +474,7 @@ def read(self, size=-1):
474474# END finish reading
475475return data
476476
477- def readline (self ,size = - 1 ):
477+ def readline (self ,size : int = - 1 )-> bytes :
478478if self ._nbr == self ._size :
479479return b''
480480
@@ -496,7 +496,7 @@ def readline(self, size=-1):
496496
497497return data
498498
499- def readlines (self ,size = - 1 ):
499+ def readlines (self ,size : int = - 1 )-> List [ bytes ] :
500500if self ._nbr == self ._size :
501501return []
502502
@@ -517,28 +517,28 @@ def readlines(self, size=-1):
517517return out
518518
519519# skipcq: PYL-E0301
520- def __iter__ (self ):
520+ def __iter__ (self )-> 'Git.CatFileContentStream' :
521521return self
522522
523- def __next__ (self ):
523+ def __next__ (self )-> bytes :
524524return self .next ()
525525
526- def next (self ):
526+ def next (self )-> bytes :
527527line = self .readline ()
528528if not line :
529529raise StopIteration
530530
531531return line
532532
533- def __del__ (self ):
533+ def __del__ (self )-> None :
534534bytes_left = self ._size - self ._nbr
535535if bytes_left :
536536# read and discard - seeking is impossible within a stream
537537# includes terminating newline
538538self ._stream .read (bytes_left + 1 )
539539# END handle incomplete read
540540
541- def __init__ (self ,working_dir = None ):
541+ def __init__ (self ,working_dir : Union [ None , PathLike ] = None ):
542542"""Initialize this instance with:
543543
544544 :param working_dir: