code: def represent_set(self, data):
      value = {}
      for key in data:
          value[key] = None
      return self.represent_mapping("tag:yaml.org,2002:set", value)
  
imports: from .error import *
  from .nodes import *
  import datetime, copyreg, types, base64, collections
label_desc: Use image node_id 10 for calling the SafeRepresenter obj's underlying member method code with example usage: obj.represent_set(data) and returns: self