(command.AndOr
  ops: [Id.Op_DAmp]
  children: [
    (command.ShFunction
      name: _rrdtool
      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>)
              ]
            )
            (command.If
              arms: [
                (if_arm
                  cond: 
                    (condition.Shell
                      commands: [
                        (command.Sentence
                          child: 
                            (command.DBracket
                              expr: 
                                (bool_expr.Binary
                                  op_id: Id.BoolBinary_eq
                                  left: 
                                    {
                                      (braced_var_sub
                                        token: <Id.VSub_Name words>
                                        prefix_op: (Id.VSub_Pound)
                                        bracket_op: (bracket_op.WholeArray op_id:Id.Lit_At)
                                      )
                                    }
                                  right: {<2>}
                                )
                            )
                          terminator: <Id.Op_Semi _>
                        )
                      ]
                    )
                  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 '$('>
                                      child: 
                                        (C {<compgen>} {<-W>} 
                                          {
                                            (SQ <'create update updatev graph dump restore\n'> 
                                              <
'            last lastupdate first info fetch tune resize xport'
                                              >
                                            )
                                          } {<-->} {(DQ ($ Id.VSub_DollarName '$cur'))}
                                        )
                                    )
                                  }
                                ]
                              )
                            }
                          spids: [53]
                        )
                      ]
                    )
                  ]
                  spids: [31 50]
                )
              ]
              else_action: [(C {<_filedir>} {<rrd>})]
            )
          ]
        )
    )
    (C {<complete>} {<-F>} {<_rrdtool>} {<rrdtool>})
  ]
)