code: def test_int_array_serialization(self):
      # Note that this test seems dependent on parallelism.
      data = self.spark.sparkContext.parallelize(
          [[1, 2, 3, 4]] * 100, numSlices=12
      )
      df = self.spark.createDataFrame(data, "array<integer>")
      self.assertEqual(
          len(list(filter(lambda r: None in r.value, df.collect()))), 0
      )
  
imports: import datetime
  import shutil
  import tempfile
  import time
  from pyspark.sql import Row
  from pyspark.sql.functions import lit
  from pyspark.sql.types import StructType, StructField, DecimalType, BinaryType
  from pyspark.testing.sqlutils import ReusedSQLTestCase, UTCOffsetTimezone
label_desc: Use image node_id 10 for calling the SerdeTestsMixin obj's underlying member method code with example usage: obj.test_int_array_serialization() without return types