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dZdS)zqHMAC (Keyed-Hashing for Message Authentication) module.

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        key: bytes or buffer, key for the keyed hash object.
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rrcCst|||S)aCreate a new hashing object and return it.

    key: bytes or buffer, The starting key for the hash.
    msg: bytes or buffer, Initial input for the hash, or None.
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               A hashlib constructor returning a new hash object. *OR*
               A module supporting PEP 247.

               Required as of 3.8, despite its position after the optional
               msg argument.  Passing it as a keyword argument is
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    You can now feed arbitrary bytes into the object using its update()
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    key: bytes or buffer, The key for the keyed hash object.
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            A module supporting PEP 247.
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