code: def getValue(self):
      return self.getValues()[-1]
  
file_path: pyalgotrade/testcases/technical_test.py
imports: from .None import common
  from pyalgotrade import technical
  from pyalgotrade import dataseries
label_desc: Use image node_id 2 for calling the TestEventWindow obj's underlying member method code with example usage: obj.getValue() and returns: self