code: def test_direct_read_dictionary_subfield():
      repeats = 10
      nunique = 5
  
      data = [
          [[util.rands(10)] for i in range(nunique)] * repeats,
      ]
      table = pa.table(data, names=["f0"])
  
      bio = pa.BufferOutputStream()
      pq.write_table(table, bio)
      contents = bio.getvalue()
      result = pq.read_table(
          pa.BufferReader(contents), read_dictionary=["f0.list.element"]
      )
  
      arr = pa.array(data[0])
      values_as_dict = arr.values.dictionary_encode()
  
      inner_indices = values_as_dict.indices.cast("int32")
      new_values = pa.DictionaryArray.from_arrays(
          inner_indices, values_as_dict.dictionary
      )
  
      offsets = pa.array(range(51), type="int32")
      expected_arr = pa.ListArray.from_arrays(offsets, new_values)
      expected = pa.table([expected_arr], names=["f0"])
  
      assert result.equals(expected)
      assert result[0].num_chunks == 1
  
imports: import decimal
  import io
  import numpy
  import pytest
  import pyarrow
  from pyarrow.tests import util
  from pyarrow.tests.parquet.common import _check_roundtrip
label_desc: Use image node_id 5 for calling a global function with example usage: test_direct_read_dictionary_subfield() without return types