code: def test_usecols_with_parse_dates4(all_parsers):
      data = "a,b,c,d,e,f,g,h,i,j\n2016/09/21,1,1,2,3,4,5,6,7,8"
      usecols = list("abcdefghij")
      parse_dates = [[0, 1]]
      parser = all_parsers
  
      cols = {
          "a_b": "2016/09/21 1",
          "c": [1],
          "d": [2],
          "e": [3],
          "f": [4],
          "g": [5],
          "h": [6],
          "i": [7],
          "j": [8],
      }
      expected = DataFrame(cols, columns=["a_b"] + list("cdefghij"))
  
      depr_msg = "Support for nested sequences for 'parse_dates' in pd.read_csv is deprecated"
      with tm.assert_produces_warning(
          (FutureWarning, DeprecationWarning),
          match=depr_msg,
          check_stacklevel=False,
      ):
          result = parser.read_csv(
              StringIO(data),
              usecols=usecols,
              parse_dates=parse_dates,
          )
      tm.assert_frame_equal(result, expected)
  
file_path: pandas/pandas/tests/io/parser/usecols/test_parse_dates.py
imports: from io import StringIO
  import pytest
  from pandas import DataFrame, Index, Timestamp
  import pandas._testing
label_desc: Use image node_id 4 for calling a global function with example usage: test_usecols_with_parse_dates4(all_parsers) without return types