(CommandList
  children: [
    (If
      arms: [
        (if_arm
          cond: [(C {(Lit_Other "[")} {($ VSub_Pound "$#")} {(-eq)} {(0)} {(Lit_Other "]")})]
          action: [
            (SimpleCommand
              words: [{(echo)} {(DQ ("Usage: [STAGE_NAME=...] more/test.sh ARCH COMMAND..."))}]
              redirects: [(Redir op_id:Redir_GreatAnd fd:-1 arg_word:{(2)} spids:[29])]
            )
            (C {(exit)} {(1)})
          ]
          spids: [-1 20]
        )
      ]
      spids: [-1 37]
    )
    (AndOr children:[(C {(.)} {(sources/include.sh)})(C {(exit)} {(1)})] op_id:Op_DPipe)
    (AndOr
      children: [
        (C {(Lit_Other "[")} {(DQ ($ VSub_Number "$1"))} {(KW_Bang "!") (Lit_Other "=")} {(DQ (host))} 
          {(Lit_Other "]")}
        )
        (SimpleCommand
          words: [{(load_target)} {(DQ ($ VSub_Number "$1"))}]
          more_env: [(env_pair name:NO_CLEANUP val:{(1)} spids:[68])]
        )
      ]
      op_id: Op_DAmp
    )
    (C {(shift)})
    (C {(eval)} {(DQ ($ VSub_At "$@"))})
  ]
)