class_docstr: Summary of diffs between two protos.
class_docstr_tok: ["Summary","of","diffs","between","two","protos","."]
code: def added(self):
      return self._added
  
imports: import deepdiff
  from google.protobuf import json_format
label_desc: Use image node_id 5 for calling the ProtoDiffs obj's underlying member method code with example usage: obj.added() and returns: self