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              more_env: []
              words: [{<local>} {<cur>} {<prev>} {<words>} {<cword>}]
              redirects: []
              do_fork: T
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            (command.AndOr
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                  more_env: []
                  words: [{<_init_completion>}]
                  redirects: []
                  do_fork: T
                )
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            )
            (command.Simple
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              more_env: []
              words: [{<local>} {<special>} {<i>}]
              redirects: []
              do_fork: T
            )
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            )
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                      arms_start: <Id.KW_In in>
                      arms: [
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                          action: [
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                              pairs: [
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                                            (CommandSub
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                                              child: 
                                                (command.Simple
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                                                  more_env: []
                                                  words: [
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                                                    {<pkgnames>}
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                                                  do_fork: T
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                                )
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                            (command.ControlFlow
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                          right: <Id.Op_DSemi _>
                        )
                        (CaseArm
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                                    (sh_lhs_expr.Name
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                                  op: assign_op.Equal
                                  rhs: 
                                    {
                                      (ShArrayLiteral
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                                        words: [
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                                            (CommandSub
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                                              child: 
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                                                  more_env: []
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                                                    {<dpkg>}
                                                    {<_comp_dpkg_installed_packages>}
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                                                  do_fork: T
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                            (command.ControlFlow
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                        (CaseArm
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              redirects: []
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            (command.Case
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                      more_env: []
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                      redirects: []
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                                            <
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