Module.nesting for anonymous modules?

Hi list,

I'm trying to get a reference to the module that a method is defined in,
problem being that the module is generated dynamically so is not part of the

foo = do
  def m
=> #<Module:0x28879c4>

c = { include foo }
=> #<Class:0x287164c>
=> []

Is there any way for a method defined like this to get a reference to its
containing module?