class_docstr: This class wraps data into a dict-like object
code: def __delitem__(self, key):
      del self.dict[key]
  
imports: from collections import defaultdict
  import csv
  from datetime import datetime
  import json
  from math import radians, cos, sin, asin, sqrt
  import urllib2
  import numpy
label_desc: Use image node_id 5 for calling the DataAccessObject obj's underlying member method code with example usage: obj.__delitem__(key) without return types