code: def __init__(
      self, memory_limiter: ResourceLimiter, concurrency_limit: int
  ) -> None:
      self.allow_process = asyncio.Event()
      self.storage: dict[str, bytes] = defaultdict(bytes)
      super().__init__(
          memory_limiter=memory_limiter,
          concurrency_limit=concurrency_limit,
      )
  
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 1 to create a new BufferTest object from inherited base classes: ShardsBuffer with example: obj = BufferTest(memory_limiter, concurrency_limit)