(command.CommandList
  children: [
    (command.ShAssignment
      pairs: [
        (assign_pair
          lhs: (sh_lhs_expr.Name name:test_description)
          op: assign_op.Equal
          rhs: {(DQ ('Tests performance of reading the index'))}
          spids: [4]
        )
      ]
    )
    (C {(.)} {(./perf-lib.sh)})
    (C {(test_perf_default_repo)})
    (command.ShAssignment
      pairs: [
        (assign_pair
          lhs: (sh_lhs_expr.Name name:count)
          op: assign_op.Equal
          rhs: {(1000)}
          spids: [18]
        )
      ]
    )
    (C {(test_perf)} {(DQ ('read_cache/discard_cache ') ($ Id.VSub_DollarName '$count') (' times'))} 
      {(DQ ('\n') ('\ttest-read-cache ') ($ Id.VSub_DollarName '$count') ('\n'))}
    )
    (C {(test_done)})
  ]
)