(self, value=None)
value -- a value as the initial value in the BytesIO object.

        If value is set, the transport can be read first.
value -- a value as the initial value in the BytesIO object.
value -- a value as the initial value in the BytesIO object .
def __init__(self, value=None):
        """value -- a value as the initial value in the BytesIO object.

        If value is set, the transport can be read first.
        """
        self._buffer = BytesIO(value) if value is not None else BytesIO()
        self._pos = 0
def __init__ ( self , value = None ) : self . _buffer = BytesIO ( value ) if value is not None else BytesIO ( ) self . _pos = 0