title: Retrieve Top level Name space Ruby
body: <p>I have a number of name space, but I need to get the name of the top level namespace.</p>
  
  <p>A::B::C</p>
  
  <p>So, if I call .class, I get A::B::C, but I need it to return just the top namespace A.</p>
  
  <p>Is there a method for this? </p>