docs: function searchCache(moduleName, callback) {
          // Resolve the module identified by the specified name
          var mod = module.constructor._resolveFilename(moduleName, module);
  
          // Check if the module has been resolved and found within
          // the cache
          if (mod && (mod = module.constructor._cache[mod]) !== undefined) {
              // Recursively go over the results
              (function run(mod) {
                  // Go over each of the module's children and
                  // run over it
                  mod.children.forEach(function (child) {
                      return run(child);
                  });
  
                  // Call the specified callback providing the
                  // found module
                  callback(mod);
              })(mod);
          }
      }