(command.CommandList
  children: [
    (command.ShAssignment
      pairs: [
        (assign_pair
          lhs: (sh_lhs_expr.Name name:tid)
          op: assign_op.Equal
          rhs: {(DQ <'remote exit status'>)}
          spids: [7]
        )
      ]
    )
    (command.ForEach
      iter_name: p
      iter_words: [{(${ Id.VSub_Name SSH_PROTOCOLS)}]
      do_arg_iter: F
      body: 
        (command.DoGroup
          children: [
            (command.ForEach
              iter_name: s
              iter_words: [{<0>} {<1>} {<4>} {<5>} {<44>}]
              do_arg_iter: F
              body: 
                (command.DoGroup
                  children: [
                    (C {<trace>} 
                      {
                        (DQ <'proto '> ($ Id.VSub_DollarName '$p') <' status '> 
                          ($ Id.VSub_DollarName '$s')
                        )
                      }
                    )
                    (C {<verbose>} 
                      {
                        (DQ <'test '> ($ Id.VSub_DollarName '$tid') <': proto '> 
                          ($ Id.VSub_DollarName '$p') <' status '> ($ Id.VSub_DollarName '$s')
                        )
                      }
                    )
                    (C {(${ Id.VSub_Name SSH)} {<-> ($ Id.VSub_DollarName '$p')} {<-F>} 
                      {($ Id.VSub_DollarName '$OBJ') <'/ssh_proxy'>} {<otherhost>} {<Id.ControlFlow_Exit exit>} {($ Id.VSub_DollarName '$s')}
                    )
                    (command.ShAssignment
                      pairs: [
                        (assign_pair
                          lhs: (sh_lhs_expr.Name name:r)
                          op: assign_op.Equal
                          rhs: {($ Id.VSub_QMark '$?')}
                          spids: [88]
                        )
                      ]
                    )
                    (command.If
                      arms: [
                        (if_arm
                          cond: 
                            (condition.Shell
                              commands: [
                                (command.Sentence
                                  child: 
                                    (C {<Id.Lit_LBracket '['>} {($ Id.VSub_DollarName '$r')} {<-ne>} 
                                      {($ Id.VSub_DollarName '$s')} {<Id.Lit_RBracket ']'>}
                                    )
                                  terminator: <Id.Op_Semi _>
                                )
                              ]
                            )
                          action: [
                            (C {<fail>} 
                              {
                                (DQ <'exit code mismatch for protocol '> ($ Id.VSub_DollarName '$p') 
                                  <': '> ($ Id.VSub_DollarName '$r') <' != '> ($ Id.VSub_DollarName '$s')
                                )
                              }
                            )
                          ]
                          spids: [92 105]
                        )
                      ]
                    )
                    (C {(${ Id.VSub_Name SSH)} {<-> ($ Id.VSub_DollarName '$p')} {<-F>} 
                      {($ Id.VSub_DollarName '$OBJ') <'/ssh_proxy'>} {<-n>} {<otherhost>} {<exec>} {<sh>} {<-c>} 
                      {(word_part.EscapedLiteral token:<Id.Lit_EscapedChar '\\\''>) 
                        (DQ <'sleep 2; exec > /dev/null 2>&1; sleep 3; exit '> 
                          ($ Id.VSub_DollarName '$s')
                        ) (word_part.EscapedLiteral token:<Id.Lit_EscapedChar '\\\''>)
                      }
                    )
                    (command.ShAssignment
                      pairs: [
                        (assign_pair
                          lhs: (sh_lhs_expr.Name name:r)
                          op: assign_op.Equal
                          rhs: {($ Id.VSub_QMark '$?')}
                          spids: [160]
                        )
                      ]
                    )
                    (command.If
                      arms: [
                        (if_arm
                          cond: 
                            (condition.Shell
                              commands: [
                                (command.Sentence
                                  child: 
                                    (C {<Id.Lit_LBracket '['>} {($ Id.VSub_DollarName '$r')} {<-ne>} 
                                      {($ Id.VSub_DollarName '$s')} {<Id.Lit_RBracket ']'>}
                                    )
                                  terminator: <Id.Op_Semi _>
                                )
                              ]
                            )
                          action: [
                            (C {<fail>} 
                              {
                                (DQ <'exit code (with sleep) mismatch for protocol '> 
                                  ($ Id.VSub_DollarName '$p') <': '> ($ Id.VSub_DollarName '$r') <' != '> ($ Id.VSub_DollarName '$s')
                                )
                              }
                            )
                          ]
                          spids: [164 177]
                        )
                      ]
                    )
                  ]
                )
            )
          ]
        )
    )
  ]
)