(command.AndOr
  ops: [Id.Op_DAmp]
  children: [
    (command.ShFunction
      name: _vmstat
      body: 
        (command.BraceGroup
          children: [
            (C {(local)} {(cur)} {(prev)} {(words)} {(cword)})
            (command.AndOr
              ops: [Id.Op_DPipe]
              children: [
                (C {(_init_completion)})
                (command.ControlFlow
                  token: (Token id:Id.ControlFlow_Return val:return span_id:26)
                )
              ]
            )
            (command.Case
              to_match: {($ Id.VSub_DollarName '$prev')}
              arms: [
                (case_arm
                  pat_list: [
                    {(-h)}
                    {(--help)}
                    {(-V)}
                    {(--version)}
                    {(-c)}
                    {(-M)}
                    {(-N)}
                    {(-n)}
                    {(-w)}
                    {(-p)}
                    {(--partition)}
                  ]
                  action: [
                    (command.ControlFlow
                      token: (Token id:Id.ControlFlow_Return val:return span_id:61)
                    )
                  ]
                  spids: [37 58 64 -1]
                )
                (case_arm
                  pat_list: [{(-S)} {(--unit)}]
                  action: [
                    (command.AndOr
                      ops: [Id.Op_DAmp]
                      children: [
                        (command.DBracket
                          expr: 
                            (bool_expr.Binary
                              op_id: Id.BoolBinary_GlobDEqual
                              left: {($ Id.VSub_DollarName '$OSTYPE')}
                              right: {(Id.Lit_Other '*') (linux) (Id.Lit_Other '*')}
                            )
                        )
                        (command.ShAssignment
                          pairs: [
                            (assign_pair
                              lhs: (sh_lhs_expr.Name name:COMPREPLY)
                              op: assign_op.Equal
                              rhs: 
                                {
                                  (sh_array_literal
                                    left: (Token id:Id.Op_LParen val:'(' span_id:90)
                                    words: [
                                      {
                                        (command_sub
                                          left_token: 
                                            (Token
                                              id: Id.Left_DollarParen
                                              val: '$('
                                              span_id: 92
                                            )
                                          command_list: 
                                            (command.CommandList
                                              children: [
                                                (C {(compgen)} {(-W)} 
                                                  {
                                                    (SQ 
                                                      (Token
                                                        id: Id.Lit_Chars
                                                        val: 'k K m M'
                                                        span_id: 99
                                                      )
                                                    )
                                                  } {(--)} {(DQ ($ Id.VSub_DollarName '$cur'))}
                                                )
                                              ]
                                            )
                                        )
                                      }
                                    ]
                                  )
                                }
                              spids: [89]
                            )
                          ]
                        )
                      ]
                    )
                    (command.ControlFlow
                      token: (Token id:Id.ControlFlow_Return val:return span_id:113)
                    )
                  ]
                  spids: [67 70 116 -1]
                )
              ]
            )
            (command.If
              arms: [
                (if_arm
                  cond: [
                    (command.Sentence
                      child: 
                        (command.DBracket
                          expr: 
                            (bool_expr.Binary
                              op_id: Id.BoolBinary_GlobDEqual
                              left: {($ Id.VSub_DollarName '$cur')}
                              right: {(-) (Id.Lit_Other '*')}
                            )
                        )
                      terminator: (Token id:Id.Op_Semi val:';' span_id:135)
                    )
                  ]
                  action: [
                    (command.ShAssignment
                      pairs: [
                        (assign_pair
                          lhs: (sh_lhs_expr.Name name:COMPREPLY)
                          op: assign_op.Equal
                          rhs: 
                            {
                              (sh_array_literal
                                left: (Token id:Id.Op_LParen val:'(' span_id:141)
                                words: [
                                  {
                                    (command_sub
                                      left_token: (Token id:Id.Left_DollarParen val:'$(' span_id:143)
                                      command_list: 
                                        (command.CommandList
                                          children: [
                                            (C {(compgen)} {(-W)} 
                                              {
                                                (SQ 
                                                  (Token
                                                    id: Id.Lit_Chars
                                                    val: '$( _parse_help "$1" )'
                                                    span_id: 150
                                                  )
                                                )
                                              } {(--)} {(DQ ($ Id.VSub_DollarName '$cur'))}
                                            )
                                          ]
                                        )
                                    )
                                  }
                                ]
                              )
                            }
                          spids: [140]
                        )
                      ]
                    )
                    (command.AndOr
                      ops: [Id.Op_DPipe]
                      children: [
                        (command.DBracket
                          expr: (bool_expr.WordTest w:{($ Id.VSub_DollarName '$COMPREPLY')})
                        )
                        (command.ShAssignment
                          pairs: [
                            (assign_pair
                              lhs: (sh_lhs_expr.Name name:COMPREPLY)
                              op: assign_op.Equal
                              rhs: 
                                {
                                  (sh_array_literal
                                    left: (Token id:Id.Op_LParen val:'(' span_id:175)
                                    words: [
                                      {
                                        (command_sub
                                          left_token: 
                                            (Token
                                              id: Id.Left_DollarParen
                                              val: '$('
                                              span_id: 177
                                            )
                                          command_list: 
                                            (command.CommandList
                                              children: [
                                                (C {(compgen)} {(-W)} 
                                                  {
                                                    (SQ 
                                                      (Token
                                                        id: Id.Lit_Chars
                                                        val: '$( _parse_usage "$1" )'
                                                        span_id: 184
                                                      )
                                                    )
                                                  } {(--)} {(DQ ($ Id.VSub_DollarName '$cur'))}
                                                )
                                              ]
                                            )
                                        )
                                      }
                                    ]
                                  )
                                }
                              spids: [174]
                            )
                          ]
                        )
                      ]
                    )
                  ]
                  spids: [123 137]
                )
              ]
            )
          ]
        )
    )
    (C {(complete)} {(-F)} {(_vmstat)} {(vmstat)})
  ]
)