class_docstr: Lightweight configuration object which stores key/value pairs.
class_docstr_tok: ["Lightweight","configuration","object","which","stores","key\/value","pairs","."]
code: def __str__(self):
      return self._j_configuration.toString()
  
imports: from typing import Set, Dict
  from py4j.java_gateway import JavaObject
  from pyflink.java_gateway import get_gateway
  from pyflink.util.java_utils import add_jars_to_context_class_loader
label_desc: Use image node_id 21 for calling the Configuration obj's underlying member method code with example usage: obj.__str__() and returns: self