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  1. or download this
    $ perl -e 'package X;'
    
    $ perl -e 'package 0;'
    syntax error at -e line 1, near "package 0;"
    Execution of -e aborted due to compilation errors.
    
  2. or download this
    $ alias perle
    alias perle='perl -Mstrict -Mwarnings -Mautodie=:all -MCarp::Always -E
    +'
    
  3. or download this
    $ perle '
        package X {
    ...
    meth1: [X]
    meth2: [X]
    meth3: [1]