(command.CommandList
  children: [
    (command.AndOr
      ops: [Op_DAmp]
      children: [
        (C {(Lit_Other '[')} 
          {
            (word_part.BracedVarSub
              token: <VSub_Name ENVIRONMENT_SH>
              suffix_op: (suffix_op.StringUnary op_id:VTest_Plus arg_word:{(isset)})
            )
          } {(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) op:Equal rhs:{(true)})]
    )
    (C {(.)} 
      {
        (word_part.BracedVarSub
          token: <VSub_Name BASH_SOURCE>
          suffix_op: (suffix_op.StringUnary op_id:VOp1_Percent arg_word:{(Lit_Slash /) ('*')})
        ) (/common.sh)
      }
    )
    (C {(.)} 
      {
        (word_part.BracedVarSub
          token: <VSub_Name BASH_SOURCE>
          suffix_op: (suffix_op.StringUnary op_id:VOp1_Percent arg_word:{(Lit_Slash /) ('*')})
        ) (/variables.sh)
      }
    )
    (C {(.)} 
      {
        (word_part.BracedVarSub
          token: <VSub_Name BASH_SOURCE>
          suffix_op: (suffix_op.StringUnary op_id:VOp1_Percent arg_word:{(Lit_Slash /) ('*')})
        ) (/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 /) ('*')})
        ) (/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 /) ('*')})
        ) (/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 /) ('*')})
        ) (/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 /) ('*')})
        ) (/variables.map.sh)
      }
    )
    (command.Assignment
      keyword: Assign_Declare
      flags: [-g]
      pairs: [(assign_pair lhs:(lhs_expr.LhsName name:ENVIRONMENT_DEBUG) op:Equal rhs:{(0)})]
    )
    (command.FuncDef
      name: 'environment::new'
      body: 
        (command.BraceGroup
          children: [
            (command.If
              arms: [
                (if_arm
                  cond: [
                    (command.Sentence
                      child: 
                        (command.DBracket
                          expr: 
                            (bool_expr.BoolBinary
                              op_id: BoolBinary_GlobDEqual
                              left: {(${ VSub_Name ENVIRONMENT_DEBUG)}
                              right: {(1)}
                            )
                        )
                      terminator: <Op_Semi ';'>
                    )
                  ]
                  action: [
                    (command.Sentence
                      child: (C {(stderr)} {(DQ ('environment::new ') (${ VSub_At '@'))})
                      terminator: <Op_Semi ';'>
                    )
                  ]
                )
              ]
            )
            (command.Sentence
              child: 
                (C 
                  {(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)
                  op: Equal
                  rhs: {(DQ (${ VSub_Name RESULT))}
                )
              ]
            )
            (C 
              {(variable) (Lit_Other ':') (Lit_Other ':') (Map) (Lit_Other ':') (Lit_Other ':') (new)}
            )
            (C 
              {(variable) (Lit_Other ':') (Lit_Other ':') (LinkedList) (Lit_Other ':') (Lit_Other ':') 
                (prepend)
              } {(DQ (${ VSub_Name env))} {(DQ (${ VSub_Name RESULT))}
            )
          ]
        )
    )
    (command.FuncDef
      name: 'environment::pushScope'
      body: 
        (command.BraceGroup
          children: [
            (command.If
              arms: [
                (if_arm
                  cond: [
                    (command.Sentence
                      child: 
                        (command.DBracket
                          expr: 
                            (bool_expr.BoolBinary
                              op_id: BoolBinary_GlobDEqual
                              left: {(${ VSub_Name ENVIRONMENT_DEBUG)}
                              right: {(1)}
                            )
                        )
                      terminator: <Op_Semi ';'>
                    )
                  ]
                  action: [
                    (command.Sentence
                      child: (C {(stderr)} {(DQ ('environment::pushScope ') (${ VSub_At '@'))})
                      terminator: <Op_Semi ';'>
                    )
                  ]
                )
              ]
            )
            (command.Assignment
              keyword: Assign_Declare
              pairs: [
                (assign_pair
                  lhs: (lhs_expr.LhsName name:env)
                  op: Equal
                  rhs: {(DQ (${ VSub_Number 1))}
                )
              ]
            )
            (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))}
            )
            (command.Assignment
              keyword: Assign_None
              pairs: [
                (assign_pair
                  lhs: (lhs_expr.LhsName name:RESULT)
                  op: Equal
                  rhs: {(DQ (${ VSub_Name RESULT))}
                )
              ]
            )
          ]
        )
    )
    (command.FuncDef
      name: 'environment::popScope'
      body: 
        (command.BraceGroup
          children: [
            (command.If
              arms: [
                (if_arm
                  cond: [
                    (command.Sentence
                      child: 
                        (command.DBracket
                          expr: 
                            (bool_expr.BoolBinary
                              op_id: BoolBinary_GlobDEqual
                              left: {(${ VSub_Name ENVIRONMENT_DEBUG)}
                              right: {(1)}
                            )
                        )
                      terminator: <Op_Semi ';'>
                    )
                  ]
                  action: [
                    (command.Sentence
                      child: (C {(stderr)} {(DQ ('environment::popScope ') (${ VSub_At '@'))})
                      terminator: <Op_Semi ';'>
                    )
                  ]
                )
              ]
            )
            (C 
              {(variable) (Lit_Other ':') (Lit_Other ':') (LinkedList) (Lit_Other ':') (Lit_Other ':') 
                (rest)
              } {(DQ ($ VSub_Number '$1'))}
            )
            (command.Assignment
              keyword: Assign_None
              pairs: [
                (assign_pair
                  lhs: (lhs_expr.LhsName name:RESULT)
                  op: Equal
                  rhs: {(DQ (${ VSub_Name RESULT))}
                )
              ]
            )
          ]
        )
    )
    (command.FuncDef
      name: 'environment::hasValue'
      body: 
        (command.BraceGroup
          children: [
            (command.If
              arms: [
                (if_arm
                  cond: [
                    (command.Sentence
                      child: 
                        (command.DBracket
                          expr: 
                            (bool_expr.BoolBinary
                              op_id: BoolBinary_GlobDEqual
                              left: {(${ VSub_Name ENVIRONMENT_DEBUG)}
                              right: {(1)}
                            )
                        )
                      terminator: <Op_Semi ';'>
                    )
                  ]
                  action: [
                    (command.Sentence
                      child: (C {(stderr)} {(DQ ('environment::getValue ') (${ VSub_At '@'))})
                      terminator: <Op_Semi ';'>
                    )
                  ]
                )
              ]
            )
            (command.Assignment
              keyword: Assign_Declare
              pairs: [
                (assign_pair
                  lhs: (lhs_expr.LhsName name:env)
                  op: Equal
                  rhs: {(DQ (${ VSub_Number 1))}
                )
              ]
            )
            (command.Assignment
              keyword: Assign_Declare
              pairs: [
                (assign_pair
                  lhs: (lhs_expr.LhsName name:name)
                  op: Equal
                  rhs: {(DQ (${ VSub_Number 2))}
                )
              ]
            )
            (command.Assignment
              keyword: Assign_Declare
              pairs: [(assign_pair lhs:(lhs_expr.LhsName name:scope) op:Equal)]
            )
            (command.Sentence
              child: 
                (C {(variable) (Lit_Other ':') (Lit_Other ':') (new)} {(String)} 
                  {(DQ (${ VSub_Name name))}
                )
              terminator: <Op_Semi ';'>
            )
            (command.Assignment
              keyword: Assign_Declare
              pairs: [
                (assign_pair
                  lhs: (lhs_expr.LhsName name:keyToken)
                  op: Equal
                  rhs: {(DQ (${ VSub_Name RESULT))}
                )
              ]
            )
            (command.Assignment
              keyword: Assign_Declare
              pairs: [
                (assign_pair
                  lhs: (lhs_expr.LhsName name:currentEnv)
                  op: Equal
                  rhs: {(DQ (${ VSub_Name env))}
                )
              ]
            )
            (command.WhileUntil
              keyword: <KW_While while>
              cond: [
                (command.Sentence
                  child: 
                    (command.Pipeline
                      children: [
                        (C 
                          {(variable) (Lit_Other ':') (Lit_Other ':') (LinkedList) (Lit_Other ':') 
                            (Lit_Other ':') (isEmpty_c)
                          } {(DQ (${ VSub_Name currentEnv))}
                        )
                      ]
                      negated: T
                    )
                  terminator: <Op_Semi ';'>
                )
              ]
              body: 
                (command.DoGroup
                  children: [
                    (C 
                      {(variable) (Lit_Other ':') (Lit_Other ':') (LinkedList) (Lit_Other ':') 
                        (Lit_Other ':') (first)
                      } {(DQ (${ VSub_Name currentEnv))}
                    )
                    (command.Assignment
                      keyword: Assign_None
                      pairs: [
                        (assign_pair
                          lhs: (lhs_expr.LhsName name:scope)
                          op: Equal
                          rhs: {(DQ (${ VSub_Name RESULT))}
                        )
                      ]
                    )
                    (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 name))}
                                )
                              terminator: <Op_Semi ';'>
                            )
                          ]
                          action: [
                            (command.ControlFlow
                              token: <ControlFlow_Return return>
                              arg_word: {(0)}
                            )
                          ]
                        )
                      ]
                    )
                    (C 
                      {(variable) (Lit_Other ':') (Lit_Other ':') (LinkedList) (Lit_Other ':') 
                        (Lit_Other ':') (rest)
                      } {(DQ (${ VSub_Name currentEnv))}
                    )
                    (command.Assignment
                      keyword: Assign_None
                      pairs: [
                        (assign_pair
                          lhs: (lhs_expr.LhsName name:currentEnv)
                          op: Equal
                          rhs: {(DQ ($ VSub_DollarName '$RESULT'))}
                        )
                      ]
                    )
                  ]
                )
            )
            (command.ControlFlow token:<ControlFlow_Return return> arg_word:{(1)})
          ]
        )
    )
    (command.FuncDef
      name: 'environment::getValue'
      body: 
        (command.BraceGroup
          children: [
            (command.If
              arms: [
                (if_arm
                  cond: [
                    (command.Sentence
                      child: 
                        (command.DBracket
                          expr: 
                            (bool_expr.BoolBinary
                              op_id: BoolBinary_GlobDEqual
                              left: {(${ VSub_Name ENVIRONMENT_DEBUG)}
                              right: {(1)}
                            )
                        )
                      terminator: <Op_Semi ';'>
                    )
                  ]
                  action: [
                    (command.Sentence
                      child: (C {(stderr)} {(DQ ('environment::getValue ') (${ VSub_At '@'))})
                      terminator: <Op_Semi ';'>
                    )
                  ]
                )
              ]
            )
            (command.Assignment
              keyword: Assign_Declare
              pairs: [
                (assign_pair
                  lhs: (lhs_expr.LhsName name:env)
                  op: Equal
                  rhs: {(DQ (${ VSub_Number 1))}
                )
              ]
            )
            (command.Assignment
              keyword: Assign_Declare
              pairs: [
                (assign_pair
                  lhs: (lhs_expr.LhsName name:name)
                  op: Equal
                  rhs: {(DQ (${ VSub_Number 2))}
                )
              ]
            )
            (command.Assignment
              keyword: Assign_Declare
              pairs: [(assign_pair lhs:(lhs_expr.LhsName name:scope) op:Equal)]
            )
            (command.Sentence
              child: 
                (C {(variable) (Lit_Other ':') (Lit_Other ':') (new)} {(String)} 
                  {(DQ (${ VSub_Name name))}
                )
              terminator: <Op_Semi ';'>
            )
            (command.Assignment
              keyword: Assign_Declare
              pairs: [
                (assign_pair
                  lhs: (lhs_expr.LhsName name:keyToken)
                  op: Equal
                  rhs: {(DQ (${ VSub_Name RESULT))}
                )
              ]
            )
            (command.Assignment
              keyword: Assign_Declare
              pairs: [
                (assign_pair
                  lhs: (lhs_expr.LhsName name:currentEnv)
                  op: Equal
                  rhs: {(DQ (${ VSub_Name env))}
                )
              ]
            )
            (command.WhileUntil
              keyword: <KW_While while>
              cond: [
                (command.Sentence
                  child: 
                    (command.Pipeline
                      children: [
                        (C 
                          {(variable) (Lit_Other ':') (Lit_Other ':') (LinkedList) (Lit_Other ':') 
                            (Lit_Other ':') (isEmpty_c)
                          } {(DQ (${ VSub_Name currentEnv))}
                        )
                      ]
                      negated: T
                    )
                  terminator: <Op_Semi ';'>
                )
              ]
              body: 
                (command.DoGroup
                  children: [
                    (C 
                      {(variable) (Lit_Other ':') (Lit_Other ':') (LinkedList) (Lit_Other ':') 
                        (Lit_Other ':') (first)
                      } {(DQ (${ VSub_Name currentEnv))}
                    )
                    (command.Assignment
                      keyword: Assign_None
                      pairs: [
                        (assign_pair
                          lhs: (lhs_expr.LhsName name:scope)
                          op: Equal
                          rhs: {(DQ (${ VSub_Name RESULT))}
                        )
                      ]
                    )
                    (command.If
                      arms: [
                        (if_arm
                          cond: [
                            (command.Sentence
                              child: 
                                (C 
                                  {(variable) (Lit_Other ':') (Lit_Other ':') (Map) (Lit_Other ':') 
                                    (Lit_Other ':') (containsKey_c)
                                  } {(DQ (${ VSub_Name scope))} {(DQ (${ VSub_Name name))}
                                )
                              terminator: <Op_Semi ';'>
                            )
                          ]
                          action: [
                            (C 
                              {(variable) (Lit_Other ':') (Lit_Other ':') (Map) (Lit_Other ':') 
                                (Lit_Other ':') (get)
                              } {(DQ (${ VSub_Name scope))} {(DQ (${ VSub_Name name))}
                            )
                            (command.ControlFlow
                              token: <ControlFlow_Return return>
                            )
                          ]
                        )
                      ]
                    )
                    (C 
                      {(variable) (Lit_Other ':') (Lit_Other ':') (LinkedList) (Lit_Other ':') 
                        (Lit_Other ':') (rest)
                      } {(DQ (${ VSub_Name currentEnv))}
                    )
                    (command.Assignment
                      keyword: Assign_None
                      pairs: [
                        (assign_pair
                          lhs: (lhs_expr.LhsName name:currentEnv)
                          op: Equal
                          rhs: {(DQ ($ VSub_DollarName '$RESULT'))}
                        )
                      ]
                    )
                  ]
                )
            )
            (C {(variable) (Lit_Other ':') (Lit_Other ':') (value)} {($ VSub_DollarName '$name')})
            (C {(stderr)} 
              {
                (DQ ('Variable [') (${ VSub_Name name) ('=') (${ VSub_Name RESULT) 
                  ('] not found in current environment')
                )
              }
            )
            (command.ControlFlow token:<ControlFlow_Exit exit> arg_word:{(1)})
          ]
        )
    )
    (command.FuncDef
      name: 'environment::setVariable'
      body: 
        (command.BraceGroup
          children: [
            (command.If
              arms: [
                (if_arm
                  cond: [
                    (command.Sentence
                      child: 
                        (command.DBracket
                          expr: 
                            (bool_expr.BoolBinary
                              op_id: BoolBinary_GlobDEqual
                              left: {(${ VSub_Name ENVIRONMENT_DEBUG)}
                              right: {(1)}
                            )
                        )
                      terminator: <Op_Semi ';'>
                    )
                  ]
                  action: [
                    (command.Sentence
                      child: (C {(stderr)} {(DQ ('environment::setVariable ') (${ VSub_At '@'))})
                      terminator: <Op_Semi ';'>
                    )
                  ]
                )
              ]
            )
            (command.Assignment
              keyword: Assign_Declare
              pairs: [
                (assign_pair
                  lhs: (lhs_expr.LhsName name:env)
                  op: Equal
                  rhs: {(DQ (${ VSub_Number 1))}
                )
              ]
            )
            (command.Assignment
              keyword: Assign_Declare
              pairs: [
                (assign_pair
                  lhs: (lhs_expr.LhsName name:keyToken)
                  op: Equal
                  rhs: {(DQ (${ VSub_Number 2))}
                )
              ]
            )
            (command.Assignment
              keyword: Assign_Declare
              pairs: [
                (assign_pair
                  lhs: (lhs_expr.LhsName name:valueToken)
                  op: Equal
                  rhs: {(DQ (${ VSub_Number 3))}
                )
              ]
            )
            (C 
              {(variable) (Lit_Other ':') (Lit_Other ':') (LinkedList) (Lit_Other ':') (Lit_Other ':') 
                (first)
              } {(DQ (${ VSub_Name env))}
            )
            (command.Assignment
              keyword: Assign_Declare
              pairs: [
                (assign_pair
                  lhs: (lhs_expr.LhsName name:scope)
                  op: Equal
                  rhs: {(DQ (${ VSub_Name RESULT))}
                )
              ]
            )
            (command.Assignment
              keyword: Assign_Declare
              pairs: [(assign_pair lhs:(lhs_expr.LhsName name:returnValue) op:Equal)]
            )
            (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) op:Equal rhs:{(0)})]
                    )
                  ]
                )
              ]
              else_action: [
                (command.Assignment
                  keyword: Assign_None
                  pairs: [(assign_pair lhs:(lhs_expr.LhsName name:returnValue) op:Equal rhs:{(1)})]
                )
              ]
            )
            (C 
              {(variable) (Lit_Other ':') (Lit_Other ':') (Map) (Lit_Other ':') (Lit_Other ':') (put)} {(DQ (${ VSub_Name scope))} {(DQ (${ VSub_Name keyToken))} {(DQ (${ VSub_Name valueToken))}
            )
            (command.Assignment
              keyword: Assign_None
              pairs: [(assign_pair lhs:(lhs_expr.LhsName name:RESULT) op:Equal rhs:{(DQ )})]
            )
            (command.ControlFlow
              token: <ControlFlow_Return return>
              arg_word: {($ VSub_DollarName '$returnValue')}
            )
          ]
        )
    )
    (command.FuncDef
      name: 'environment::setOrReplaceVariable'
      body: 
        (command.BraceGroup
          children: [
            (command.If
              arms: [
                (if_arm
                  cond: [
                    (command.Sentence
                      child: 
                        (command.DBracket
                          expr: 
                            (bool_expr.BoolBinary
                              op_id: BoolBinary_GlobDEqual
                              left: {(${ VSub_Name ENVIRONMENT_DEBUG)}
                              right: {(1)}
                            )
                        )
                      terminator: <Op_Semi ';'>
                    )
                  ]
                  action: [
                    (command.Sentence
                      child: 
                        (C {(stderr)} {(DQ ('environment::setOrReplaceVariable ') (${ VSub_At '@'))})
                      terminator: <Op_Semi ';'>
                    )
                  ]
                )
              ]
            )
            (command.Assignment
              keyword: Assign_Declare
              pairs: [
                (assign_pair
                  lhs: (lhs_expr.LhsName name:env)
                  op: Equal
                  rhs: {(DQ (${ VSub_Number 1))}
                )
              ]
            )
            (command.Assignment
              keyword: Assign_Declare
              pairs: [
                (assign_pair
                  lhs: (lhs_expr.LhsName name:keyToken)
                  op: Equal
                  rhs: {(DQ (${ VSub_Number 2))}
                )
              ]
            )
            (command.Assignment
              keyword: Assign_Declare
              pairs: [
                (assign_pair
                  lhs: (lhs_expr.LhsName name:valueToken)
                  op: Equal
                  rhs: {(DQ (${ VSub_Number 3))}
                )
              ]
            )
            (command.Assignment
              keyword: Assign_Declare
              pairs: [(assign_pair lhs:(lhs_expr.LhsName name:scope) op:Equal)]
            )
            (command.Assignment
              keyword: Assign_Declare
              pairs: [
                (assign_pair
                  lhs: (lhs_expr.LhsName name:currentEnv)
                  op: Equal
                  rhs: {(DQ (${ VSub_Name env))}
                )
              ]
            )
            (command.WhileUntil
              keyword: <KW_While while>
              cond: [
                (command.Sentence
                  child: 
                    (command.Pipeline
                      children: [
                        (C 
                          {(variable) (Lit_Other ':') (Lit_Other ':') (LinkedList) (Lit_Other ':') 
                            (Lit_Other ':') (isEmpty_c)
                          } {(DQ (${ VSub_Name currentEnv))}
                        )
                      ]
                      negated: T
                    )
                  terminator: <Op_Semi ';'>
                )
              ]
              body: 
                (command.DoGroup
                  children: [
                    (C 
                      {(variable) (Lit_Other ':') (Lit_Other ':') (LinkedList) (Lit_Other ':') 
                        (Lit_Other ':') (first)
                      } {(DQ (${ VSub_Name currentEnv))}
                    )
                    (command.Assignment
                      keyword: Assign_None
                      pairs: [
                        (assign_pair
                          lhs: (lhs_expr.LhsName name:scope)
                          op: Equal
                          rhs: {(DQ (${ VSub_Name RESULT))}
                        )
                      ]
                    )
                    (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: [
                            (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) op:Equal rhs:{(DQ )})]
                            )
                            (command.ControlFlow
                              token: <ControlFlow_Return return>
                              arg_word: {(0)}
                            )
                          ]
                        )
                      ]
                    )
                    (C 
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