class_docstr: JDBC sink batch options.
code: def defaults() -> "JdbcExecutionOptions":
      return JdbcExecutionOptions(
          j_jdbc_execution_options=get_gateway().jvm.org.apache.flink.connector.jdbc.JdbcExecutionOptions.defaults()
      )
  
imports: from pyflink.common.typeinfo import RowTypeInfo
  from pyflink.datastream.functions import SinkFunction
  from pyflink.java_gateway import get_gateway
  from pyflink.util.java_utils import to_jarray
label_desc: Use image node_id 5 for calling the JdbcExecutionOptions obj's underlying member method code with example usage: obj.defaults() and returns: JdbcExecutionOptions