PEEKKEYS variable-name = axmud-object-property
PEEKKEYS ARRAY variable-name = axmud-object-property

   Synopsis:
      Fetches all keys from key-value pairs in an Axmud internal hash property

   Notes:
      PEEK gives Axbasic scripts access to most of Axmud's internal data (see 
         the help for the PEEK statement for a full explanation).
      PEEKKEYS can only be used with hash properties such as 
         "world.current.currencyHash". It cannot be used with a scalar property 
         such as "world.current.name", a list property such as 
         "world.current.doorPatternList" or a Perl object such as 
         "world.current".
      'variable-name' is always an Axbasic array, regardless of whether you 
         include the ARRAY keyword, or not. The array is set to a list of keys
         from the hash property in a pseudo-random order. If the hash property
         is empty, the Axbasic array is empty, too.
      Unless you are certain that all of the keys in the hash property are
         numeric, it's best to use a string array. If you use a numeric array
         and just one of the hash property's keys is not a string, you'll get an
         error.

   Examples:
      ! Store the keys of a hash property in an Axbasic global array 
      ! The following two statements behave in exactly the same way
      PEEKKEYS keys$ = "world.current.currencyHash"
      PEEKKEYS ARRAY keys$ = "world.current.currencyHash"
 
      ! Store keys of a hash property in an Axbasic local array 
      DIM LOCAL keys$(1)
      PEEKKEYS keys$ = "world.current.currencyHash"

      ! Using a numeric array is often a bad idea
      PEEKKEYS mylist = "world.current.currencyHash"
