class_docstr: The Python wrapper of Java BulkWriter.Factory interface, which is the base interface for data
  sinks that write records into files in a bulk manner.
code: def __init__(self, j_bulk_writer_factory):
      super().__init__(j_bulk_writer_factory)
  
imports: from pyflink.common.utils import JavaObjectWrapper
  from pyflink.java_gateway import get_gateway
label_desc: Use image node_id 1 to create a new BulkWriterFactory object from inherited base classes: JavaObjectWrapper with example: obj = BulkWriterFactory(j_bulk_writer_factory)