docs: def get(self, reference, country,  target=datetime.date.today()):
          """
          Get the inflation/deflation value change for the target date based 
          on the reference date. Target defaults to today and the instance's
          reference and country will be used if they are not provided as
          parameters
          """
  
          # Set country & reference to object's country & reference respectively
          reference = self.reference if reference is None else reference
  
          # Get the reference and target indices (values) from the source
          reference_value = self.data.get(reference, country).value
          target_value = self.data.get(target, country).value
  
          # Compute the inflation value and return it
          return self._compute_inflation(target_value, reference_value)