(command.AndOr
  ops: [Id.Op_DAmp]
  children: [
    (command.ShFunction
      name: _mtx
      body: 
        (BraceGroup
          children: [
            (C {<local>} {<cur>} {<prev>} {<words>} {<cword>})
            (command.AndOr
              ops: [Id.Op_DPipe]
              children: [
                (C {<_init_completion>})
                (command.ControlFlow token:<Id.ControlFlow_Return return>)
              ]
            )
            (C {<local>} {<options>} {<tapes>} {<drives>})
            (command.ShAssignment
              pairs: [
                (assign_pair
                  lhs: (sh_lhs_expr.Name name:options)
                  op: assign_op.Equal
                  rhs: 
                    {
                      (DQ <'-f nobarcode invert noattach --version inquiry noattach '> 
                        <'        inventory status load unload eepos first last next'>
                      )
                    }
                  spids: [43]
                )
              ]
            )
            (command.ShAssignment
              pairs: [
                (assign_pair
                  lhs: (sh_lhs_expr.Name name:tapes)
                  op: assign_op.Equal
                  rhs: 
                    {
                      (command_sub
                        left_token: <Id.Left_DollarParen '$('>
                        child: 
                          (command.Pipeline
                            children: [
                              (command.Simple
                                words: [{<mtx>} {<status>}]
                                redirects: [
                                  (redir
                                    op: <Id.Redir_Great '2>'>
                                    loc: (redir_loc.Fd fd:2)
                                    arg: {<'/dev/null'>}
                                  )
                                ]
                                do_fork: T
                              )
                              (C {<awk>} {(SQ <'/Storage Element [0-9]+:Full/ { printf "%s ", $3 }'>)})
                            ]
                            negated: F
                          )
                      )
                    }
                  spids: [52]
                )
              ]
            )
            (command.ShAssignment
              pairs: [
                (assign_pair
                  lhs: (sh_lhs_expr.Name name:tapes)
                  op: assign_op.Equal
                  rhs: 
                    {
                      (braced_var_sub
                        token: <Id.VSub_Name tapes>
                        suffix_op: (suffix_op.PatSub pat:{<':Full'>} replace_mode:Id.Lit_Slash)
                      )
                    }
                  spids: [73]
                )
              ]
            )
            (command.ShAssignment
              pairs: [
                (assign_pair
                  lhs: (sh_lhs_expr.Name name:drives)
                  op: assign_op.Equal
                  rhs: 
                    {
                      (command_sub
                        left_token: <Id.Left_DollarParen '$('>
                        child: 
                          (command.Pipeline
                            children: [
                              (command.Simple
                                words: [{<mtx>} {<status>}]
                                redirects: [
                                  (redir
                                    op: <Id.Redir_Great '2>'>
                                    loc: (redir_loc.Fd fd:2)
                                    arg: {<'/dev/null'>}
                                  )
                                ]
                                do_fork: T
                              )
                              (C {<awk>} 
                                {
                                  (SQ 
                                    <
'/Data Transfer Element [0-9]+:(Full|Empty)/ { printf "%s ", $4 }'
                                    >
                                  )
                                }
                              )
                            ]
                            negated: F
                          )
                      )
                    }
                  spids: [83]
                )
              ]
            )
            (command.ShAssignment
              pairs: [
                (assign_pair
                  lhs: (sh_lhs_expr.Name name:drives)
                  op: assign_op.Equal
                  rhs: 
                    {
                      (braced_var_sub
                        token: <Id.VSub_Name drives>
                        suffix_op: (suffix_op.PatSub pat:{<':Full'>} replace_mode:Id.Lit_Slash)
                      )
                    }
                  spids: [104]
                )
              ]
            )
            (command.ShAssignment
              pairs: [
                (assign_pair
                  lhs: (sh_lhs_expr.Name name:drives)
                  op: assign_op.Equal
                  rhs: 
                    {
                      (braced_var_sub
                        token: <Id.VSub_Name drives>
                        suffix_op: (suffix_op.PatSub pat:{<':Empty'>} replace_mode:Id.Lit_Slash)
                      )
                    }
                  spids: [113]
                )
              ]
            )
            (command.If
              arms: [
                (if_arm
                  cond: 
                    (condition.Shell
                      commands: [
                        (command.Sentence
                          child: 
                            (command.DBracket
                              expr: 
                                (bool_expr.Binary
                                  op_id: Id.BoolBinary_gt
                                  left: {($ Id.VSub_DollarName '$cword')}
                                  right: {<1>}
                                )
                            )
                          terminator: <Id.Op_Semi _>
                        )
                      ]
                    )
                  action: [
                    (command.Case
                      to_match: {($ Id.VSub_DollarName '$prev')}
                      arms: [
                        (case_arm
                          pat_list: [{<load>}]
                          action: [
                            (command.ShAssignment
                              pairs: [
                                (assign_pair
                                  lhs: (sh_lhs_expr.Name name:COMPREPLY)
                                  op: assign_op.Equal
                                  rhs: 
                                    {
                                      (sh_array_literal
                                        left: <Id.Op_LParen _>
                                        words: [
                                          {
                                            (command_sub
                                              left_token: <Id.Left_DollarParen '$('>
                                              child: 
                                                (C {<compgen>} {<-W>} 
                                                  {(DQ ($ Id.VSub_DollarName '$tapes'))} {<-->} {(DQ ($ Id.VSub_DollarName '$cur'))}
                                                )
                                            )
                                          }
                                        ]
                                      )
                                    }
                                  spids: [150]
                                )
                              ]
                            )
                          ]
                          spids: [146 147 174 -1]
                        )
                        (case_arm
                          pat_list: [{<unload>} {<first>} {<last>} {<next>}]
                          action: [
                            (command.ShAssignment
                              pairs: [
                                (assign_pair
                                  lhs: (sh_lhs_expr.Name name:COMPREPLY)
                                  op: assign_op.Equal
                                  rhs: 
                                    {
                                      (sh_array_literal
                                        left: <Id.Op_LParen _>
                                        words: [
                                          {
                                            (command_sub
                                              left_token: <Id.Left_DollarParen '$('>
                                              child: 
                                                (C {<compgen>} {<-W>} 
                                                  {(DQ ($ Id.VSub_DollarName '$drives'))} {<-->} {(DQ ($ Id.VSub_DollarName '$cur'))}
                                                )
                                            )
                                          }
                                        ]
                                      )
                                    }
                                  spids: [187]
                                )
                              ]
                            )
                          ]
                          spids: [177 184 211 -1]
                        )
                        (case_arm
                          pat_list: [{<-f>}]
                          action: [(C {<true>})]
                          spids: [214 215 221 -1]
                        )
                        (case_arm
                          pat_list: [{<Id.Lit_Star '*'>}]
                          action: [(C {<true>})]
                          spids: [224 225 231 -1]
                        )
                      ]
                    )
                  ]
                  spids: [123 136]
                )
              ]
              else_action: [
                (command.ShAssignment
                  pairs: [
                    (assign_pair
                      lhs: (sh_lhs_expr.Name name:COMPREPLY)
                      op: assign_op.Equal
                      rhs: 
                        {
                          (sh_array_literal
                            left: <Id.Op_LParen _>
                            words: [
                              {
                                (command_sub
                                  left_token: <Id.Left_DollarParen '$('>
                                  child: 
                                    (C {<compgen>} {<-W>} {(DQ ($ Id.VSub_DollarName '$options'))} {<-->} 
                                      {(DQ ($ Id.VSub_DollarName '$cur'))}
                                    )
                                )
                              }
                            ]
                          )
                        }
                      spids: [240]
                    )
                  ]
                )
              ]
            )
            (command.ControlFlow token:<Id.ControlFlow_Return return> arg_word:{<0>})
          ]
        )
    )
    (C {<complete>} {<-F>} {<_mtx>} {<mtx>})
  ]
)