docs: function sortExpansions() {
      let impl = function(expansions) {
          expansions.sort((a, b) => {
              return a.offset - b.offset;
          });
          
          for (let i = 0; i < expansions.length; i++) {
              impl(expansions[i].expansions);
          }
      }
  
      impl(_(this).expansions);
  }