(command.CommandList
  children: [
    (command.If
      arms: [
        (if_arm
          cond: [
            (command.Sentence
              child: 
                (command.DBracket
                  expr: 
                    (bool_expr.Binary
                      op_id: Id.BoolBinary_GlobDEqual
                      left: {($ Id.VSub_DollarName '$OSTYPE')}
                      right: {<Id.Lit_Other '*'> <linux> <Id.Lit_Other '*'>}
                    )
                )
              terminator: <Id.Op_Semi _>
            )
          ]
          action: [
            (C {<.>} {(DQ ($ Id.VSub_DollarName '$BASH_SOURCE') <.linux>)})
            (command.ControlFlow token:<Id.ControlFlow_Return return>)
          ]
          spids: [4 19]
        )
      ]
    )
    (command.AndOr
      ops: [Id.Op_DAmp]
      children: [
        (command.ShFunction
          name: _umount
          body: 
            (command.BraceGroup
              children: [
                (C {<local>} {<cur>} {<prev>} {<words>} {<cword>})
                (command.AndOr
                  ops: [Id.Op_DPipe]
                  children: [
                    (C {<_init_completion>})
                    (command.ControlFlow token:<Id.ControlFlow_Return return>)
                  ]
                )
                (C {<local>} 
                  {<Id.Lit_VarLike 'IFS='> 
                    (single_quoted
                      left: <Id.Left_SingleQuoteC "$'">
                      tokens: [<Id.Char_OneChar '\\n'>]
                    )
                  }
                )
                (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 '$('>
                                  command_list: 
                                    (command.CommandList
                                      children: [
                                        (C {<compgen>} {<-W>} {(SQ <'$( mount | cut -d" " -f 3 )'>)} 
                                          {<-->} {(DQ ($ Id.VSub_DollarName '$cur'))}
                                        )
                                      ]
                                    )
                                )
                              }
                            ]
                          )
                        }
                      spids: [78]
                    )
                  ]
                )
              ]
            )
        )
        (C {<complete>} {<-F>} {<_umount>} {<-o>} {<dirnames>} {<umount>})
      ]
    )
  ]
)