Puppet users - Feb 2013 - stdlib::member "support for strings and hashes" todo

I am curious as to how support for strings would work. To me, it seems 
there are two possibile use-cases for support for strings. Take the 
following example:

Assume:
  - extdata exists, identified by ''array''
  - extlookup(''array'') may return an array or a single string
(in the case
that the "array" only has one member)

Case 1: 
$array = extlookup("array") -> extlookup returns a string
member($array, ''some_string'') -> returns true if $array is
the string
''some_string''

Case 2:
$array = extlookup("array") -> extlookup returns an array
member returns true if array.includes?(''some_string'')

The alternative, I suppose, would be substring matching, but in that case 
wouldn''t "member" be a misnomer and shouldn''t the
more common substr() be
added?

For hash membership, we would want to look for key membership, yes?

Anyway, came across an instance of when this kind of behavior would be 
useful, and was wondering if this behavior was the intent behind this 
particular TODO. If so, I will submit a patch.

Thanks,

Greg

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