(CommandList
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      arms: [
        (if_arm
          cond: [
            (Sentence
              child: 
                (DBracket
                  expr: 
                    (BoolBinary
                      op_id: BoolBinary_GlobDEqual
                      left: {($ VSub_Number "$0")}
                      right: 
                        {
                          (BracedVarSub
                            token: <VSub_Name BASH_SOURCE>
                            bracket_op: (ArrayIndex expr:(ArithWord w:{(Lit_Digits 0)}))
                            spids: [69 74]
                          )
                        }
                    )
                )
              terminator: <Op_Semi ";">
            )
          ]
          action: [
            (C {(source)} {(../init/require.sh)})
            (C {(source)} {(../lib/help.sh)})
            (C {(require)} {(../lib/alias.sh)})
          ]
          spids: [-1 80]
        )
      ]
      spids: [-1 101]
    )
    (C {(_Dbg_help_add)} {(enable)} 
      {
        (SQ <"**enable** *bpnum1* [*bpnum2* ...]\n"> <"\n"> 
          <"Enables breakpoints *bpnum1*, *bpnum2*... Breakpoints numbers are given as a space-\n"> <"separated list numbers.\n"> <"\n"> <"See also:\n"> <"---------\n"> <"\n"> 
          <"**disable** and **info break**.">
        )
      }
    )
    (FuncDef
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      body: 
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          children: [
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              arms: [
                (if_arm
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                    (Sentence
                      child: 
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                          child: 
                            (ArithBinary
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                              left: (ArithWord w:{($ VSub_Pound "$#")})
                              right: (ArithWord w:{(Lit_Digits 0)})
                            )
                        )
                      terminator: <Op_Semi ";">
                    )
                  ]
                  action: [
                    (C {(_Dbg_errmsg)} {(SQ <"Expecting breakpoint/watchpoint numbers. Got none.">)})
                    (ControlFlow token:<ControlFlow_Return return> arg_word:{(1)})
                  ]
                  spids: [-1 145]
                )
              ]
              spids: [-1 160]
            )
            (C {(_Dbg_enable_disable)} {(1)} {(SQ <enabled>)} {($ VSub_At "$@")})
            (ControlFlow token:<ControlFlow_Return return> arg_word:{($ VSub_QMark "$?")})
          ]
          spids: [129]
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      spids: [125 128]
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                      left: {($ VSub_Number "$0")}
                      right: 
                        {
                          (BracedVarSub
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                            bracket_op: (ArrayIndex expr:(ArithWord w:{(Lit_Digits 0)}))
                            spids: [189 194]
                          )
                        }
                    )
                )
              terminator: <Op_Semi ";">
            )
          ]
          action: [
            (C {(require)} {(./help.sh)} {(../lib/msg.sh)} {(../lib/sort.sh)} {(../lib/columnize.sh)} 
              {(../lib/list.sh)}
            )
            (Assignment
              keyword: Assign_None
              pairs: [
                (assign_pair
                  lhs: (LhsName name:_Dbg_args)
                  op: Equal
                  rhs: {(SQ <enable>)}
                  spids: [218]
                )
              ]
              spids: [218]
            )
            (C {(_Dbg_do_help)} {(enable)})
          ]
          spids: [-1 200]
        )
      ]
      spids: [-1 228]
    )
  ]
)