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| | S )zAuthenticate the next byte string in the tuple.
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c | j S| j t | j dz | j | j | _ | j S )zReturn the **binary** (non-printable) digest of the tuple of byte strings.
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digest_bytes (integer):
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digest_bits (integer):
Optional and alternative to ``digest_bytes``.
The size of the digest, in bits (and in steps of 8).
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custom (bytes):
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A customization bytestring (``S`` in SP 800-185).
:Return: A :class:`TupleHash` object
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