class_docstr: Wrapper for _IncrementalWriter providing an Element like interface.
  
  This wrapper does not intend to be a complete implementation but rather to
  deal with those calls used in GraphMLWriter.
class_docstr_tok: ["Wrapper","for","_IncrementalWriter","providing","an","Element","like","interface",".","This","wrapper","does","not","intend","to","be","a","complete","implementation","but","rather","to","deal","with","those","calls","used","in","GraphMLWriter","."]
code: def append(self, element):
      self.xml.write(element, pretty_print=self.prettyprint)
  
imports: import warnings
  from collections import defaultdict
  import networkx
  from networkx.utils import open_file
label_desc: Use image node_id 2 for calling the IncrementalElement obj's underlying member method code with example usage: obj.append(element) without return types