code: def test_shares_memory_string():
      # GH#55823
      import pyarrow as pa
  
      obj = pd.array(["a", "b"], dtype="string[pyarrow]")
      assert tm.shares_memory(obj, obj)
  
      obj = pd.array(["a", "b"], dtype="string[pyarrow_numpy]")
      assert tm.shares_memory(obj, obj)
  
      obj = pd.array(["a", "b"], dtype=pd.ArrowDtype(pa.string()))
      assert tm.shares_memory(obj, obj)
  
imports: import pandas.util._test_decorators
  import pandas
  import pandas._testing
label_desc: Use image node_id 2 for calling a global function with example usage: test_shares_memory_string() without return types