(command.CommandList
  children: [
    (C {<source>} {<'sources/utility_functions.sh'>})
    (command.If
      arms: [
        (if_arm
          cond: 
            (condition.Shell
              commands: [
                (C {<Id.Lit_LBracket '['>} {($ Id.VSub_Pound '$#')} {<-lt>} {<1>} {<Id.Lit_RBracket ']'>})
              ]
            )
          action: [
            (command.Simple
              words: [{<echo>} {(DQ <'Usage: timeout.sh SECONDS COMMANDS...'>)}]
              redirects: [(redir op:<Id.Redir_GreatAnd '>&'> loc:(redir_loc.Fd fd:1) arg:{<2>})]
              do_fork: T
            )
            (command.ControlFlow token:<Id.ControlFlow_Exit exit> arg_word:{<1>})
          ]
          spids: [23 35]
        )
      ]
    )
    (C {<trap>} {(DQ <'killtree '> ($ Id.VSub_Dollar '$$'))} {<EXIT>})
    (command.ShAssignment
      pairs: [
        (assign_pair
          lhs: (sh_lhs_expr.Name name:TIMEOUT)
          op: assign_op.Equal
          rhs: {(DQ ($ Id.VSub_Number '$1'))}
          spids: [64]
        )
      ]
    )
    (C {<shift>})
    (command.Pipeline
      children: [
        (command.Subshell child:(C {<eval>} {(DQ ($ Id.VSub_At '$@'))}))
        (C {<tee>} 
          {
            (command_sub
              left_token: <Id.Left_ProcSubOut '>('>
              child: 
                (command.CommandList
                  children: [
                    (command.Sentence
                      child: 
                        (command.WhileUntil
                          keyword: <Id.KW_While while>
                          cond: 
                            (condition.Shell
                              commands: [
                                (command.Sentence
                                  child: 
                                    (C {<read>} {<-t>} {(DQ ($ Id.VSub_DollarName '$TIMEOUT'))} {<-n>} 
                                      {<32>} {<i>}
                                    )
                                  terminator: <Id.Op_Semi _>
                                )
                              ]
                            )
                          body: 
                            (command.DoGroup
                              children: [
                                (command.Sentence
                                  child: (C {<true>})
                                  terminator: <Id.Op_Semi _>
                                )
                              ]
                            )
                        )
                      terminator: <Id.Op_Semi _>
                    )
                    (command.Sentence
                      child: (C {<sleep>} {<1>})
                      terminator: <Id.Op_Semi _>
                    )
                    (command.Simple
                      words: [{<kill>} {<-TERM>} {($ Id.VSub_Dollar '$$')}]
                      redirects: [
                        (redir
                          op: <Id.Redir_Great '2>'>
                          loc: (redir_loc.Fd fd:2)
                          arg: {<'/dev/null'>}
                        )
                      ]
                      do_fork: T
                    )
                  ]
                )
            )
          }
        )
      ]
      negated: F
    )
  ]
)