[R] generic function object

[Mathieu Drapeau]

Hi,
I would like to know if there is a way to see the code of a generic 
function?
Like when I only type the function name, it prints the source of that 
function. But I cannot see the code of a generic function, it prints:
...
function (object, ...)
standardGeneric("normalize")
<environment: 0x8e9e368>
Methods may be defined for arguments: object
...

Thanks,
Mathieu