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  1. or download this
    use feature qw[ say ];
    
    ...
    
    # explicit load of feature, but doesn't work (unexpected result)
    $cft->reval( 'use feature qw[ say ]; say "Hello Again! 2"' );
    
  2. or download this
    Hello!
    String found where operator expected at (eval 5) line 1, near "say "He
    +llo Again!""
        (Do you need to predeclare say?)
    String found where operator expected at (eval 7) line 1, near "say "He
    +llo Again! 2""
        (Do you need to predeclare say?)