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If EOF was received and the internal buffer is empty, return an empty bytes object. If `n` is 0, return an empty bytes object immediately. If `n` is positive, return at most `n` available bytes as soon as at least 1 byte is available in the internal buffer. If EOF is received before any byte is read, return an empty bytes object. Returned value is not limited with limit, configured at stream creation. If stream was paused, this function will automatically resume it if needed. NrrT�read) r�r r�rZr�r�r�r�rr�)rD�n�blocks�blockr�s rr zStreamReader.read�s����, �?� &��/� !� ��6�6��3� �q�5�5� �F� %�"�i�i�� �4�4�4�4�4�4�4�4������ � �e�$�$�$�  %� �8�8�F�#�#� #��|� .�D�I� .��%�%�f�-�-� -� -� -� -� -� -� -��T�\�"�1�"�%�&�&�� �L��!�� � �$�$�&�&�&�� rc��K�|dkrtd���|j�|j�|dkrdSt|j��|kr||jrBt |j��}|j���tj||���|� d���d{V��t|j��|k�|t|j��|kr.t |j��}|j���n&t |jd|���}|jd|�=|� ��|S)a�Read exactly `n` bytes. Raise an IncompleteReadError if EOF is reached before `n` bytes can be read. The IncompleteReadError.partial attribute of the exception will contain the partial read bytes. if n is zero, return empty bytes object. Returned value is not limited with limit, configured at stream creation. 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