main::(./t/hsltupletest.t:8):	my $prospectTupleRef = [qw~a b c~];
  DB<1> n
main::(./t/hsltupletest.t:10):	my $tuple = HSLTuple->new($prospectTupleRef, 'HSL');
  DB<1> n
main::(./t/hsltupletest.t:12):	ok($tuple->is_valid($prospectTupleRef) == 0, "A B C is an array but not an HSL tuple");
  DB<1> x $tuple
0  FakeTuple=HASH(0x5b2e6ee12a70)
   'axes' => 3
   'space_name' => 'HSL'
   'tupledata' => undef
  DB<2>