* What is this?
 
 An implementation of generic functions based on CLOS and the protocols
 defined in the Art of the Metaobject protocol, adapted for JS.  These
 adaptations include using the prototype chain instead of classes and
 additionally providing extensible specializers (as in
 https://github.com/sbcl/specializable). For the moment, this is only
 used to provide a Shape specializer, as the details of the interaction
 between such specializers and subtyping are an open question.
 
 * Use examples:
 
 ** A React Component