code: function buildClasses (db) {
    const classes = data.findClasses(db).order('name')
  
    return classes.map(function (klass) {
      const fns = data
        .findChildFunctions(db, [klass])
        .order('name')
        .map(copyFunction)
  
      return copyClass(klass, fns)
    })
  }
docs: Builds the classes from the database object `db`.