Create a new UUID according to Options. The following options
Integer in the range 1..5, which specifies the UUID version
that is created. Default is 1.
Provide additional context information for UUIDs using version
3 or 5. If there is no explicit version option, UUID version
3 is used.
Representation of the UUID. Default is atom, yielding atoms
such as 8304efdd-bd6e-5b7c-a27f-83f3f05c64e0. The
alternative is integer, returning a large integer that
represents the 128 bits of the UUID.
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