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local words = ['hello', 'world', 'jsonnet'];

{
  upper: std.asciiUpper(words[0]),
  joined: std.join(', ', words),
  formatted: std.format('count=%d, first=%s', [std.length(words), words[0]]),
  count: std.length(words),
  words: words,
  mapped: std.map(function(w) std.asciiUpper(w), words),
  filtered: std.filter(function(w) std.length(w) > 5, words),
}