def get_namespace_type fqns
      return nil if fqns.nil?
      pin = store.get_path_pins(fqns).first
      return nil if pin.nil?
      pin.type
    end
def get_namespace_type fqns
      return nil if fqns.nil?
      pin = store.get_path_pins(fqns).first
      return nil if pin.nil?
      pin.type
    end
Get the namespace's type (Class or Module).

 @param fqns [String] A fully qualified namespace
 @return [Symbol] :class, :module, or nil