code: def _create_basic_avro_schema_and_py_objects() -> (
      Tuple[AvroSchema, List[dict]]
  ):
      schema = AvroSchema.parse_string(BASIC_SCHEMA)
      objects = [
          {
              "null": None,
              "boolean": True,
              "int": 0,
              "long": 1,
              "float": 2.0,
              "double": 3.0,
              "string": "s1",
          },
          {
              "null": None,
              "boolean": False,
              "int": 4,
              "long": 5,
              "float": 6.0,
              "double": 7.0,
              "string": "s2",
          },
      ]
      return schema, objects
  
imports: import glob
  import os
  import tempfile
  from typing import Tuple, List
  from avro.datafile import DataFileReader
  from avro.io import DatumReader
  from py4j.java_gateway import JavaObject, java_import
  from pyflink.datastream import MapFunction
  from pyflink.datastream.connectors.file_system import FileSink
  from pyflink.datastream.formats.avro import AvroSchema, GenericRecordAvroTypeInfo, AvroBulkWriters, AvroInputFormat
  from pyflink.datastream.tests.test_util import DataStreamTestSinkFunction
  from pyflink.java_gateway import get_gateway
  from pyflink.testing.test_case_utils import PyFlinkUTTestCase
label_desc: Use image node_id 3 for calling a global function with example usage: _create_basic_avro_schema_and_py_objects() and returns: schema,  objects