(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>})
  ]
)