Compare the output from these two snippets:
$ pugs -e 'my %hash;
%hash<foo>[0]<bar>[0] = 1;
my $alias := %hash<foo>[0];
say ref $alias;
%hash<foo>[0] = 5;
say ref $alias'
Hash
Int
$ pugs -e 'my %hash;
%hash<foo>[0]<bar>[0] = 1;
my $ref = %hash<foo>[0];
say ref $ref;
%hash<foo>[0] = 5;
say ref $ref'
Hash
Hash
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