static initClass() {
    /** Reset the sheet to an empty state. */
    // clear = function( clearMeta ) {
    //   clearMeta = ((clearMeta === undefined) && true) || clearMeta;
    //   if (clearMeta) { delete this.imp; }
    //   delete this.basics.computed; // Don't use Object.keys() here
    //   delete this.work;
    //   delete this.volunteer;
    //   delete this.education;
    //   delete this.awards;
    //   delete this.publications;
    //   delete this.interests;
    //   delete this.skills;
    //   return delete this.basics.profiles;
    // };
    // extends AbstractResume
  }
A JRS resume or CV. JRS resumes are backed by JSON, and each JRSResume object
is an instantiation of that JSON decorated with utility methods.
@class JRSResume