Making Idempotent calls to sp_droparticle

I'm working on a migration Script and trying to make the exec sp_droparticle @Publication=...

calls Idempotent (capable of running over again without error or doing harm)

Typically we'd do something like this:

IF EXISTS (SELECT Object ) 

BEGIN

exec sp_droparticle @Publication= 

END

Q: Is there a nice way to check for Article existence?  Tried Scripting from Replication wizard but no luck.  Tried Searching internet but no luck.

Thanks

...Ray