(CommandList
  children: [
    (C {(set)} {(-e)})
    (C {(.)} {($ VSub_Name "$REPO_ROOT") (/bootstrap/shared/shared_functions.sh)})
    (C {(export)} {(Lit_VarLike "CLUSTER_NODE_COUNT_OVERRIDE=") (6)})
    (AndOr
      children: [
        (C {(cd)} {($ VSub_Name "$REPO_ROOT") (/bootstrap/vagrant_scripts)})
        (C {(vagrant)} {(destroy)} {(-f)})
      ]
      op_id: Op_DAmp
    )
  ]
)