(CommandList
  children: [
    (C {(set)} {(-o)} {(errexit)})
    (C {(set)} {(-o)} {(nounset)})
    (C {(set)} {(-o)} {(pipefail)})
    (Assignment
      keyword: Assign_None
      pairs: [
        (assign_pair
          lhs: (LhsName name:KUBE_ROOT)
          op: Equal
          rhs: 
            {
              (DQ 
                (CommandSubPart
                  command_list: 
                    (CommandList
                      children: [
                        (AndOr
                          children: [
                            (C {(cd)} 
                              {
                                (DQ 
                                  (CommandSubPart
                                    command_list: 
                                      (CommandList
                                        children: [(C {(dirname)} {(DQ (${ VSub_Name BASH_SOURCE))})]
                                      )
                                    left_token: <Left_CommandSub '$('>
                                    spids: [69 77]
                                  ) (/../)
                                )
                              }
                            )
                            (C {(pwd)} {(-P)})
                          ]
                          op_id: Op_DAmp
                        )
                      ]
                    )
                  left_token: <Left_CommandSub '$('>
                  spids: [65 86]
                )
              )
            }
          spids: [63]
        )
      ]
      spids: [63]
    )
    (Assignment
      keyword: Assign_None
      pairs: [
        (assign_pair
          lhs: (LhsName name:DEVICE_PLUGIN_ROOT)
          op: Equal
          rhs: {(DQ (${ VSub_Name KUBE_ROOT) (/pkg/kubelet/apis/deviceplugin/v1alpha1/))}
          spids: [89]
        )
      ]
      spids: [89]
    )
    (C {(source)} {(DQ (${ VSub_Name KUBE_ROOT) (/hack/lib/protoc.sh))})
    (C 
      {(kube) (Lit_Other ':') (Lit_Other ':') (protoc) (Lit_Other ':') (Lit_Other ':') (generate_proto)} {(${ VSub_Name DEVICE_PLUGIN_ROOT)}
    )
  ]
)