def _read()

in src/azstoragetorch/io.py [0:0]


    def _read(self, size: Optional[int]) -> bytes:
        if size == 0 or self._is_at_end_of_blob():
            return b""
        download_length = size
        if size is not None and size < 0:
            download_length = None
        content = self._client.download(offset=self._position, length=download_length)
        self._position += len(content)
        return content