title: (Ruby,Rails) Context of SELF in modules and libraries...?
body: <p>Quick question regarding the use of "SELF" inside a module or library.  Basically what is the scope/context of "SELF" as it pertains to a module or library and how is it to be properly used?  For an example of what I'm talking about, check out the "AuthenticatedSystem" module installed with "restful_authentication".</p>
  
  <p>NOTE:  I'm aware that 'self' equates to 'this' in other languages and how 'self' operates on a class/object, however in the context of a module/library there is nothing to 'self'.  So then what is the context of self inside something like a module where there is no class?</p>