code: def test_memoryview_encoding_and_decoding(self, r):
      unicode_string = chr(3456) + "abcd" + chr(3421)
      unicode_string_view = memoryview(unicode_string.encode("utf-8"))
      r["unicode-string-memoryview"] = unicode_string_view
      cached_val = r["unicode-string-memoryview"]
      assert isinstance(cached_val, str)
      assert unicode_string == cached_val
  
imports: import pytest
  import redis
  from redis.connection import Connection
  from redis.utils import HIREDIS_PACK_AVAILABLE
  from .conftest import _get_client
label_desc: Use image node_id 6 for calling the TestEncoding obj's underlying member method code with example usage: obj.test_memoryview_encoding_and_decoding(r) without return types