code: def read(self, id: str) -> bytes:
      return self.storage[id]
  
file_path: distributed/distributed/shuffle/tests/test_buffer.py
imports: from __future__ import annotations
  import asyncio
  import math
  from collections import defaultdict
  import pytest
  from dask.utils import parse_bytes
  from distributed.shuffle._buffer import ShardsBuffer
  from distributed.shuffle._limiter import ResourceLimiter
  from distributed.utils import wait_for
  from distributed.utils_test import captured_context_meter, gen_test
label_desc: Use image node_id 2 for calling the BufferTest obj's underlying member method code with example usage: obj.read(id) and returns: self