parameters: (self, var)
return_statement: return self._averages.get(var, None)
docstring: Returns the `Variable` holding the average of `var`.
  
      Args:
        var: A `Variable` object.
  
      Returns:
        A `Variable` object or `None` if the moving average of `var`
        is not maintained..
docstring_summary: Returns the `Variable` holding the average of `var`.
docstring_tokens: Returns the Variable holding the average of var .
function: def average(self, var):
      """Returns the `Variable` holding the average of `var`.
  
      Args:
        var: A `Variable` object.
  
      Returns:
        A `Variable` object or `None` if the moving average of `var`
        is not maintained..
      """
      return self._averages.get(var, None)
function_tokens: def average ( self , var ) : return self . _averages . get ( var , None )