code: def test_format():
      # GH-34740
      assert format(NA) == "<NA>"
      assert format(NA, ">10") == "      <NA>"
      assert (
          format(NA, "xxx") == "<NA>"
      )  # NA is flexible, accept any format spec
  
      assert f"{NA}" == "<NA>"
      assert f"{NA:>10}" == "      <NA>"
      assert f"{NA:xxx}" == "<NA>"
  
imports: from datetime import date, time, timedelta
  import pickle
  import numpy
  import pytest
  from pandas._libs.missing import NA
  from pandas.core.dtypes.common import is_scalar
  import pandas
  import pandas._testing
label_desc: Use image node_id 3 for calling a global function with example usage: test_format() without return types