class_docstr: Utility class to facilitate API queries and state management of
  session data.
class_docstr_tok: ["Utility","class","to","facilitate","API","queries","and","state","management","of","session","data","."]
code: def __init__(self, uri, database, collection):
      self.uri = uri
      self.database = database
      self.collection = collection
  
file_path: io/tensorflow_io/python/experimental/mongodb_dataset_ops.py
imports: from urllib.parse import urlparse
  import tensorflow
  from tensorflow_io.python.ops import core_ops
  from tensorflow_io.python.experimental import serialization_ops
label_desc: Use image node_id 1 to create a new _MongoDBHandler object  with example: obj = _MongoDBHandler(uri, database, collection)