default values of flavor instance vars

[Gaius Martin <Martin%ai-sun.jpl.nasa.gov@RELAY.CS.NET>]

Given this form:

(defflavor foo
	((a 1)
	 (b 2)
	 (c 3))
	()
  :initable-instance-variables
  :writable-instance-variables
  :abstract-flavor)

Is there a way to programmatically determine
the default values for the instance variables of foo?

Thanks in advance,

Gaius