(command.CommandList
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      children: [
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          {
            (word_part.BracedVarSub
              token: <VSub_Name ENVIRONMENT_SH>
              suffix_op: (suffix_op.StringUnary op_id:VTest_Plus arg_word:{(isset)})
              spids: [9 13]
            )
          } {(Lit_Other ']')}
        )
        (command.ControlFlow token:<ControlFlow_Return return>)
      ]
    )
    (command.Assignment
      keyword: Assign_Declare
      flags: [-g]
      pairs: [
        (assign_pair
          lhs: (lhs_expr.LhsName name:ENVIRONMENT_SH spids:[25])
          op: Equal
          rhs: {(true)}
          spids: [25]
        )
      ]
      spids: [21]
    )
    (C {(.)} 
      {
        (word_part.BracedVarSub
          token: <VSub_Name BASH_SOURCE>
          suffix_op: (suffix_op.StringUnary op_id:VOp1_Percent arg_word:{(Lit_Slash /) ('*')})
          spids: [59 64]
        ) (/common.sh)
      }
    )
    (C {(.)} 
      {
        (word_part.BracedVarSub
          token: <VSub_Name BASH_SOURCE>
          suffix_op: (suffix_op.StringUnary op_id:VOp1_Percent arg_word:{(Lit_Slash /) ('*')})
          spids: [69 74]
        ) (/variables.sh)
      }
    )
    (C {(.)} 
      {
        (word_part.BracedVarSub
          token: <VSub_Name BASH_SOURCE>
          suffix_op: (suffix_op.StringUnary op_id:VOp1_Percent arg_word:{(Lit_Slash /) ('*')})
          spids: [79 84]
        ) (/variables.arraylist.sh)
      }
    )
    (C {(.)} 
      {
        (word_part.BracedVarSub
          token: <VSub_Name BASH_SOURCE>
          suffix_op: (suffix_op.StringUnary op_id:VOp1_Percent arg_word:{(Lit_Slash /) ('*')})
          spids: [89 94]
        ) (/variables.linkedlist.sh)
      }
    )
    (C {(.)} 
      {
        (word_part.BracedVarSub
          token: <VSub_Name BASH_SOURCE>
          suffix_op: (suffix_op.StringUnary op_id:VOp1_Percent arg_word:{(Lit_Slash /) ('*')})
          spids: [99 104]
        ) (/variables.stack.sh)
      }
    )
    (C {(.)} 
      {
        (word_part.BracedVarSub
          token: <VSub_Name BASH_SOURCE>
          suffix_op: (suffix_op.StringUnary op_id:VOp1_Percent arg_word:{(Lit_Slash /) ('*')})
          spids: [109 114]
        ) (/variables.queue.sh)
      }
    )
    (C {(.)} 
      {
        (word_part.BracedVarSub
          token: <VSub_Name BASH_SOURCE>
          suffix_op: (suffix_op.StringUnary op_id:VOp1_Percent arg_word:{(Lit_Slash /) ('*')})
          spids: [119 124]
        ) (/variables.map.sh)
      }
    )
    (command.Assignment
      keyword: Assign_Declare
      flags: [-g]
      pairs: [
        (assign_pair
          lhs: (lhs_expr.LhsName name:ENVIRONMENT_DEBUG spids:[133])
          op: Equal
          rhs: {(0)}
          spids: [133]
        )
      ]
      spids: [129]
    )
    (command.FuncDef
      name: 'environment::new'
      body: 
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          children: [
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              arms: [
                (if_arm
                  cond: [
                    (command.Sentence
                      child: 
                        (command.DBracket
                          expr: 
                            (bool_expr.BoolBinary
                              op_id: BoolBinary_GlobDEqual
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                              right: {(1)}
                            )
                        )
                      terminator: <Op_Semi ';'>
                    )
                  ]
                  action: [
                    (command.Sentence
                      child: (C {(stderr)} {(DQ ('environment::new ') (${ VSub_At '@'))})
                      terminator: <Op_Semi ';'>
                    )
                  ]
                  spids: [16777215 195]
                )
              ]
              spids: [16777215 208]
            )
            (command.Sentence
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                  {(variable) (Lit_Other ':') (Lit_Other ':') (LinkedList) (Lit_Other ':') 
                    (Lit_Other ':') (new)
                  }
                )
              terminator: <Op_Semi ';'>
            )
            (command.Assignment
              keyword: Assign_None
              pairs: [
                (assign_pair
                  lhs: (lhs_expr.LhsName name:env spids:[222])
                  op: Equal
                  rhs: {(DQ (${ VSub_Name RESULT))}
                  spids: [222]
                )
              ]
              spids: [222]
            )
            (C 
              {(variable) (Lit_Other ':') (Lit_Other ':') (Map) (Lit_Other ':') (Lit_Other ':') (new)}
            )
            (C 
              {(variable) (Lit_Other ':') (Lit_Other ':') (LinkedList) (Lit_Other ':') (Lit_Other ':') 
                (prepend)
              } {(DQ (${ VSub_Name env))} {(DQ (${ VSub_Name RESULT))}
            )
          ]
          spids: [177]
        )
      spids: [168 176]
    )
    (command.FuncDef
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          children: [
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                (if_arm
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                    (command.Sentence
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                          expr: 
                            (bool_expr.BoolBinary
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                              right: {(1)}
                            )
                        )
                      terminator: <Op_Semi ';'>
                    )
                  ]
                  action: [
                    (command.Sentence
                      child: (C {(stderr)} {(DQ ('environment::pushScope ') (${ VSub_At '@'))})
                      terminator: <Op_Semi ';'>
                    )
                  ]
                  spids: [16777215 311]
                )
              ]
              spids: [16777215 324]
            )
            (command.Assignment
              keyword: Assign_Declare
              pairs: [
                (assign_pair
                  lhs: (lhs_expr.LhsName name:env spids:[330])
                  op: Equal
                  rhs: {(DQ (${ VSub_Number 1))}
                  spids: [330]
                )
              ]
              spids: [328]
            )
            (C 
              {(variable) (Lit_Other ':') (Lit_Other ':') (Map) (Lit_Other ':') (Lit_Other ':') (new)}
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            (C 
              {(variable) (Lit_Other ':') (Lit_Other ':') (LinkedList) (Lit_Other ':') (Lit_Other ':') 
                (prepend)
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            )
            (command.Assignment
              keyword: Assign_None
              pairs: [
                (assign_pair
                  lhs: (lhs_expr.LhsName name:RESULT spids:[370])
                  op: Equal
                  rhs: {(DQ (${ VSub_Name RESULT))}
                  spids: [370]
                )
              ]
              spids: [370]
            )
          ]
          spids: [293]
        )
      spids: [284 292]
    )
    (command.FuncDef
      name: 'environment::popScope'
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          children: [
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                (if_arm
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                          expr: 
                            (bool_expr.BoolBinary
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                              right: {(1)}
                            )
                        )
                      terminator: <Op_Semi ';'>
                    )
                  ]
                  action: [
                    (command.Sentence
                      child: (C {(stderr)} {(DQ ('environment::popScope ') (${ VSub_At '@'))})
                      terminator: <Op_Semi ';'>
                    )
                  ]
                  spids: [16777215 434]
                )
              ]
              spids: [16777215 447]
            )
            (C 
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                (rest)
              } {(DQ ($ VSub_Number '$1'))}
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            (command.Assignment
              keyword: Assign_None
              pairs: [
                (assign_pair
                  lhs: (lhs_expr.LhsName name:RESULT spids:[464])
                  op: Equal
                  rhs: {(DQ (${ VSub_Name RESULT))}
                  spids: [464]
                )
              ]
              spids: [464]
            )
          ]
          spids: [416]
        )
      spids: [407 415]
    )
    (command.FuncDef
      name: 'environment::hasValue'
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          children: [
            (command.If
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                (if_arm
                  cond: [
                    (command.Sentence
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                        (command.DBracket
                          expr: 
                            (bool_expr.BoolBinary
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                              right: {(1)}
                            )
                        )
                      terminator: <Op_Semi ';'>
                    )
                  ]
                  action: [
                    (command.Sentence
                      child: (C {(stderr)} {(DQ ('environment::getValue ') (${ VSub_At '@'))})
                      terminator: <Op_Semi ';'>
                    )
                  ]
                  spids: [16777215 516]
                )
              ]
              spids: [16777215 529]
            )
            (command.Assignment
              keyword: Assign_Declare
              pairs: [
                (assign_pair
                  lhs: (lhs_expr.LhsName name:env spids:[535])
                  op: Equal
                  rhs: {(DQ (${ VSub_Number 1))}
                  spids: [535]
                )
              ]
              spids: [533]
            )
            (command.Assignment
              keyword: Assign_Declare
              pairs: [
                (assign_pair
                  lhs: (lhs_expr.LhsName name:name spids:[545])
                  op: Equal
                  rhs: {(DQ (${ VSub_Number 2))}
                  spids: [545]
                )
              ]
              spids: [543]
            )
            (command.Assignment
              keyword: Assign_Declare
              pairs: [
                (assign_pair
                  lhs: (lhs_expr.LhsName name:scope spids:[555])
                  op: Equal
                  spids: [555]
                )
              ]
              spids: [553]
            )
            (command.Sentence
              child: 
                (C {(variable) (Lit_Other ':') (Lit_Other ':') (new)} {(String)} 
                  {(DQ (${ VSub_Name name))}
                )
              terminator: <Op_Semi ';'>
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            (command.Assignment
              keyword: Assign_Declare
              pairs: [
                (assign_pair
                  lhs: (lhs_expr.LhsName name:keyToken spids:[576])
                  op: Equal
                  rhs: {(DQ (${ VSub_Name RESULT))}
                  spids: [576]
                )
              ]
              spids: [574]
            )
            (command.Assignment
              keyword: Assign_Declare
              pairs: [
                (assign_pair
                  lhs: (lhs_expr.LhsName name:currentEnv spids:[587])
                  op: Equal
                  rhs: {(DQ (${ VSub_Name env))}
                  spids: [587]
                )
              ]
              spids: [585]
            )
            (command.WhileUntil
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                    (command.Pipeline
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                            (Lit_Other ':') (isEmpty_c)
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                      ]
                      negated: T
                    )
                  terminator: <Op_Semi ';'>
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              body: 
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                        (Lit_Other ':') (first)
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                        (assign_pair
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                          rhs: {(DQ (${ VSub_Name RESULT))}
                          spids: [633]
                        )
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                      spids: [633]
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                    (command.If
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                              terminator: <Op_Semi ';'>
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                          ]
                          action: [
                            (command.ControlFlow
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                              arg_word: {(0)}
                            )
                          ]
                          spids: [16777215 665]
                        )
                      ]
                      spids: [16777215 673]
                    )
                    (C 
                      {(variable) (Lit_Other ':') (Lit_Other ':') (LinkedList) (Lit_Other ':') 
                        (Lit_Other ':') (rest)
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                    (command.Assignment
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                      pairs: [
                        (assign_pair
                          lhs: (lhs_expr.LhsName name:currentEnv spids:[692])
                          op: Equal
                          rhs: {(DQ ($ VSub_DollarName '$RESULT'))}
                          spids: [692]
                        )
                      ]
                      spids: [692]
                    )
                  ]
                  spids: [615 698]
                )
            )
            (command.ControlFlow token:<ControlFlow_Return return> arg_word:{(1)})
          ]
          spids: [498]
        )
      spids: [489 497]
    )
    (command.FuncDef
      name: 'environment::getValue'
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          children: [
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                (if_arm
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                    (command.Sentence
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                            (bool_expr.BoolBinary
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                              right: {(1)}
                            )
                        )
                      terminator: <Op_Semi ';'>
                    )
                  ]
                  action: [
                    (command.Sentence
                      child: (C {(stderr)} {(DQ ('environment::getValue ') (${ VSub_At '@'))})
                      terminator: <Op_Semi ';'>
                    )
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                  spids: [16777215 754]
                )
              ]
              spids: [16777215 767]
            )
            (command.Assignment
              keyword: Assign_Declare
              pairs: [
                (assign_pair
                  lhs: (lhs_expr.LhsName name:env spids:[773])
                  op: Equal
                  rhs: {(DQ (${ VSub_Number 1))}
                  spids: [773]
                )
              ]
              spids: [771]
            )
            (command.Assignment
              keyword: Assign_Declare
              pairs: [
                (assign_pair
                  lhs: (lhs_expr.LhsName name:name spids:[783])
                  op: Equal
                  rhs: {(DQ (${ VSub_Number 2))}
                  spids: [783]
                )
              ]
              spids: [781]
            )
            (command.Assignment
              keyword: Assign_Declare
              pairs: [
                (assign_pair
                  lhs: (lhs_expr.LhsName name:scope spids:[793])
                  op: Equal
                  spids: [793]
                )
              ]
              spids: [791]
            )
            (command.Sentence
              child: 
                (C {(variable) (Lit_Other ':') (Lit_Other ':') (new)} {(String)} 
                  {(DQ (${ VSub_Name name))}
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              terminator: <Op_Semi ';'>
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            (command.Assignment
              keyword: Assign_Declare
              pairs: [
                (assign_pair
                  lhs: (lhs_expr.LhsName name:keyToken spids:[814])
                  op: Equal
                  rhs: {(DQ (${ VSub_Name RESULT))}
                  spids: [814]
                )
              ]
              spids: [812]
            )
            (command.Assignment
              keyword: Assign_Declare
              pairs: [
                (assign_pair
                  lhs: (lhs_expr.LhsName name:currentEnv spids:[825])
                  op: Equal
                  rhs: {(DQ (${ VSub_Name env))}
                  spids: [825]
                )
              ]
              spids: [823]
            )
            (command.WhileUntil
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              cond: [
                (command.Sentence
                  child: 
                    (command.Pipeline
                      children: [
                        (C 
                          {(variable) (Lit_Other ':') (Lit_Other ':') (LinkedList) (Lit_Other ':') 
                            (Lit_Other ':') (isEmpty_c)
                          } {(DQ (${ VSub_Name currentEnv))}
                        )
                      ]
                      negated: T
                    )
                  terminator: <Op_Semi ';'>
                )
              ]
              body: 
                (command.DoGroup
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                    (C 
                      {(variable) (Lit_Other ':') (Lit_Other ':') (LinkedList) (Lit_Other ':') 
                        (Lit_Other ':') (first)
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                    (command.Assignment
                      keyword: Assign_None
                      pairs: [
                        (assign_pair
                          lhs: (lhs_expr.LhsName name:scope spids:[871])
                          op: Equal
                          rhs: {(DQ (${ VSub_Name RESULT))}
                          spids: [871]
                        )
                      ]
                      spids: [871]
                    )
                    (command.If
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                        (if_arm
                          cond: [
                            (command.Sentence
                              child: 
                                (C 
                                  {(variable) (Lit_Other ':') (Lit_Other ':') (Map) (Lit_Other ':') 
                                    (Lit_Other ':') (containsKey_c)
                                  } {(DQ (${ VSub_Name scope))} {(DQ (${ VSub_Name name))}
                                )
                              terminator: <Op_Semi ';'>
                            )
                          ]
                          action: [
                            (C 
                              {(variable) (Lit_Other ':') (Lit_Other ':') (Map) (Lit_Other ':') 
                                (Lit_Other ':') (get)
                              } {(DQ (${ VSub_Name scope))} {(DQ (${ VSub_Name name))}
                            )
                            (command.ControlFlow
                              token: <ControlFlow_Return return>
                            )
                          ]
                          spids: [16777215 903]
                        )
                      ]
                      spids: [16777215 930]
                    )
                    (C 
                      {(variable) (Lit_Other ':') (Lit_Other ':') (LinkedList) (Lit_Other ':') 
                        (Lit_Other ':') (rest)
                      } {(DQ (${ VSub_Name currentEnv))}
                    )
                    (command.Assignment
                      keyword: Assign_None
                      pairs: [
                        (assign_pair
                          lhs: (lhs_expr.LhsName name:currentEnv spids:[949])
                          op: Equal
                          rhs: {(DQ ($ VSub_DollarName '$RESULT'))}
                          spids: [949]
                        )
                      ]
                      spids: [949]
                    )
                  ]
                  spids: [853 955]
                )
            )
            (C {(variable) (Lit_Other ':') (Lit_Other ':') (value)} {($ VSub_DollarName '$name')})
            (C {(stderr)} 
              {
                (DQ ('Variable [') (${ VSub_Name name) ('=') (${ VSub_Name RESULT) 
                  ('] not found in current environment')
                )
              }
            )
            (command.ControlFlow token:<ControlFlow_Exit exit> arg_word:{(1)})
          ]
          spids: [736]
        )
      spids: [727 735]
    )
    (command.FuncDef
      name: 'environment::setVariable'
      body: 
        (command.BraceGroup
          children: [
            (command.If
              arms: [
                (if_arm
                  cond: [
                    (command.Sentence
                      child: 
                        (command.DBracket
                          expr: 
                            (bool_expr.BoolBinary
                              op_id: BoolBinary_GlobDEqual
                              left: {(${ VSub_Name ENVIRONMENT_DEBUG)}
                              right: {(1)}
                            )
                        )
                      terminator: <Op_Semi ';'>
                    )
                  ]
                  action: [
                    (command.Sentence
                      child: (C {(stderr)} {(DQ ('environment::setVariable ') (${ VSub_At '@'))})
                      terminator: <Op_Semi ';'>
                    )
                  ]
                  spids: [16777215 1043]
                )
              ]
              spids: [16777215 1056]
            )
            (command.Assignment
              keyword: Assign_Declare
              pairs: [
                (assign_pair
                  lhs: (lhs_expr.LhsName name:env spids:[1062])
                  op: Equal
                  rhs: {(DQ (${ VSub_Number 1))}
                  spids: [1062]
                )
              ]
              spids: [1060]
            )
            (command.Assignment
              keyword: Assign_Declare
              pairs: [
                (assign_pair
                  lhs: (lhs_expr.LhsName name:keyToken spids:[1072])
                  op: Equal
                  rhs: {(DQ (${ VSub_Number 2))}
                  spids: [1072]
                )
              ]
              spids: [1070]
            )
            (command.Assignment
              keyword: Assign_Declare
              pairs: [
                (assign_pair
                  lhs: (lhs_expr.LhsName name:valueToken spids:[1082])
                  op: Equal
                  rhs: {(DQ (${ VSub_Number 3))}
                  spids: [1082]
                )
              ]
              spids: [1080]
            )
            (C 
              {(variable) (Lit_Other ':') (Lit_Other ':') (LinkedList) (Lit_Other ':') (Lit_Other ':') 
                (first)
              } {(DQ (${ VSub_Name env))}
            )
            (command.Assignment
              keyword: Assign_Declare
              pairs: [
                (assign_pair
                  lhs: (lhs_expr.LhsName name:scope spids:[1108])
                  op: Equal
                  rhs: {(DQ (${ VSub_Name RESULT))}
                  spids: [1108]
                )
              ]
              spids: [1106]
            )
            (command.Assignment
              keyword: Assign_Declare
              pairs: [
                (assign_pair
                  lhs: (lhs_expr.LhsName name:returnValue spids:[1118])
                  op: Equal
                  spids: [1118]
                )
              ]
              spids: [1116]
            )
            (command.If
              arms: [
                (if_arm
                  cond: [
                    (command.Sentence
                      child: 
                        (C 
                          {(variable) (Lit_Other ':') (Lit_Other ':') (Map) (Lit_Other ':') 
                            (Lit_Other ':') (containsKey_c)
                          } {(DQ (${ VSub_Name scope))} {(DQ (${ VSub_Name keyToken))}
                        )
                      terminator: <Op_Semi ';'>
                    )
                  ]
                  action: [
                    (command.Assignment
                      keyword: Assign_None
                      pairs: [
                        (assign_pair
                          lhs: (lhs_expr.LhsName name:returnValue spids:[1149])
                          op: Equal
                          rhs: {(0)}
                          spids: [1149]
                        )
                      ]
                      spids: [1149]
                    )
                  ]
                  spids: [16777215 1146]
                )
              ]
              else_action: [
                (command.Assignment
                  keyword: Assign_None
                  pairs: [
                    (assign_pair
                      lhs: (lhs_expr.LhsName name:returnValue spids:[1156])
                      op: Equal
                      rhs: {(1)}
                      spids: [1156]
                    )
                  ]
                  spids: [1156]
                )
              ]
              spids: [1153 1160]
            )
            (C 
              {(variable) (Lit_Other ':') (Lit_Other ':') (Map) (Lit_Other ':') (Lit_Other ':') (put)} {(DQ (${ VSub_Name scope))} {(DQ (${ VSub_Name keyToken))} {(DQ (${ VSub_Name valueToken))}
            )
            (command.Assignment
              keyword: Assign_None
              pairs: [
                (assign_pair
                  lhs: (lhs_expr.LhsName name:RESULT spids:[1191])
                  op: Equal
                  rhs: {(DQ )}
                  spids: [1191]
                )
              ]
              spids: [1191]
            )
            (command.ControlFlow
              token: <ControlFlow_Return return>
              arg_word: {($ VSub_DollarName '$returnValue')}
            )
          ]
          spids: [1025]
        )
      spids: [1016 1024]
    )
    (command.FuncDef
      name: 'environment::setOrReplaceVariable'
      body: 
        (command.BraceGroup
          children: [
            (command.If
              arms: [
                (if_arm
                  cond: [
                    (command.Sentence
                      child: 
                        (command.DBracket
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                  spids: [16777215 1249]
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              spids: [16777215 1262]
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                (assign_pair
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                  op: Equal
                  rhs: {(DQ (${ VSub_Number 1))}
                  spids: [1268]
                )
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              spids: [1266]
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            (command.Assignment
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              pairs: [
                (assign_pair
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                  op: Equal
                  rhs: {(DQ (${ VSub_Number 2))}
                  spids: [1278]
                )
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              spids: [1276]
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            (command.Assignment
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              pairs: [
                (assign_pair
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                  op: Equal
                  rhs: {(DQ (${ VSub_Number 3))}
                  spids: [1288]
                )
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              spids: [1286]
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            (command.Assignment
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              pairs: [
                (assign_pair
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                  op: Equal
                  spids: [1298]
                )
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              spids: [1296]
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            (command.Assignment
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              pairs: [
                (assign_pair
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                  op: Equal
                  rhs: {(DQ (${ VSub_Name env))}
                  spids: [1304]
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              spids: [1302]
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                          action: [
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                            (command.Assignment
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                                (assign_pair
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                                  spids: [1412]
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                              spids: [1412]
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                            (command.ControlFlow
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                          spids: [16777215 1382]
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                      spids: [16777215 1422]
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                    (C 
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                          spids: [1441]
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                      spids: [1441]
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                  spids: [1332 1447]
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            (C 
              {(variable) (Lit_Other ':') (Lit_Other ':') (LinkedList) (Lit_Other ':') (Lit_Other ':') 
                (first)
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                  op: Equal
                  rhs: {(DQ (${ VSub_Name RESULT))}
                  spids: [1470]
                )
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              spids: [1470]
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            (C 
              {(variable) (Lit_Other ':') (Lit_Other ':') (Map) (Lit_Other ':') (Lit_Other ':') (put)} {(DQ (${ VSub_Name scope))} {(DQ (${ VSub_Name keyToken))} {(DQ (${ VSub_Name valueToken))}
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              spids: [1505]
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            (command.ControlFlow token:<ControlFlow_Return return> arg_word:{(1)})
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          spids: [1231]
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      spids: [1222 1230]
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              pairs: [
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                  op: Equal
                  rhs: {(DQ (${ VSub_Number 1))}
                  spids: [1531]
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              spids: [1529]
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                    (C 
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                  spids: [1572 1627]
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          spids: [1526]
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          spids: [16777215 1649]
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        (command.Sentence
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          terminator: <Op_Semi ';'>
        )
        (C {(assert) (Lit_Other ':') (Lit_Other ':') (equals)} {(DQ ('value three'))} 
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    (command.CommandList
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          pairs: [
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              op: Equal
              rhs: {(DQ (${ VSub_Name RESULT))}
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          terminator: <Op_Semi ';'>
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        (C {(assert) (Lit_Other ':') (Lit_Other ':') (equals)} {(DQ ('value three'))} 
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        (command.Sentence
          child: 
            (C {(environment) (Lit_Other ':') (Lit_Other ':') (hasValue)} {(DQ (${ VSub_Name env3))} 
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          terminator: <Op_Semi ';'>
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        (C {(assert) (Lit_Other ':') (Lit_Other ':') (equals)} {(1)} {($ VSub_QMark '$?')} 
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          child: (C {(environment) (Lit_Other ':') (Lit_Other ':') (new)})
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              spids: [2626]
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              spids: [2655]
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            (C {(environment) (Lit_Other ':') (Lit_Other ':') (getValue)} {(DQ (${ VSub_Name env2))} 
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          terminator: <Op_Semi ';'>
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        (C {(assert) (Lit_Other ':') (Lit_Other ':') (equals)} {(DQ ('value two'))} 
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    )
    (C {(assert) (Lit_Other ':') (Lit_Other ':') (report)})
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                  children: [
                    (C {(Lit_Other '[')} 
                      {
                        (word_part.BracedVarSub
                          token: <VSub_Number 1>
                          suffix_op: (suffix_op.StringUnary op_id:VTest_Plus arg_word:{(isset)})
                          spids: [2799 2803]
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                      } {(Lit_Other ']')}
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                    (C {(Lit_Other '[')} {(DQ ($ VSub_Number '$1'))} {(Lit_Other '=') (Lit_Other '=')} 
                      {(DQ (debug))} {(Lit_Other ']')}
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              terminator: <Op_Semi ';'>
            )
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          action: [(C {(variable) (Lit_Other ':') (Lit_Other ':') (printMetadata)})]
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)