code: def get_data(self):
      # Construct and return the next document.
      if self.check_node():
          return self.construct_document(self.get_node())
  
imports: from .error import *
  from .nodes import *
  import collections.abc, datetime, base64, binascii, re, sys, types
label_desc: Use image node_id 4 for calling the BaseConstructor obj's underlying member method code with example usage: obj.get_data() and returns: self