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=head2 Experimental status

The tuple data type as supplied by the Perl core is experimental.
This means that it could change significantly, or be removed entirely,
in a future version of Perl.

Furthermore, the manner in which this module uses the tuple data type
is somewhat speculative.  The Perl core does not document precisely what
kinds of operations are intended to be possible on tuples, and there is no
established common practice, so the semantics offered by this module are
in part guesses.  For example, rewriting a tuple in a way that changes
the number of slots it has is something that's naturally possible to do
with the data structure, but isn't ever performed by core code, and it
might be decided in the future that it should never happen to a tuple
beyond its initial construction.

The mutability semantics offered by this module are particularly
speculative.  As of Perl 5.37.10, the Perl core neither sets nor honours
the read-only flag that this module uses.  It is not possible to discern
in what situations the core intends tuples to be mutable, because the core
code is not self-consistent on this point: it assumes that slot values