title: How can I find out all the methods defined for a class in R?
body: <p>In R, I want to get an idea of what I can do with a particular class (specifically, the "Mart" class from the "biomaRt" package in BioConductor). I would like to see all the methods that are defined for this class. Is there a way to do this? </p>
  
  <p>Note: The <code>methods</code> function does not do what I want. That function lists all the classes for which a specific method is defined, not all the methods defined for a class.</p>