code: def test_BinaryType_serialization(self):
      # Pyrolite version <= 4.9 could not serialize BinaryType with Python3 SPARK-17808
      # The empty bytearray is test for SPARK-21534.
      schema = StructType([StructField("mybytes", BinaryType())])
      data = [
          [bytearray(b"here is my data")],
          [bytearray(b"and here is some more")],
          [bytearray(b"")],
      ]
      df = self.spark.createDataFrame(data, schema=schema)
      df.collect()
  
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 9 for calling the SerdeTestsMixin obj's underlying member method code with example usage: obj.test_BinaryType_serialization() without return types