code: public AsyncLookupInBuilder get(String... paths) {
          if (paths == null || paths.length == 0) {
              throw new IllegalArgumentException("Path is mandatory for subdoc get");
          }
          for (String path : paths) {
              if (StringUtil.isNullOrEmpty(path)) {
                  throw new IllegalArgumentException("Path is mandatory for subdoc get");
              }
              this.specs.add(new LookupSpec(Lookup.GET, path));
          }
          return this;
      }
docs: Get a value inside the JSON document.
  
  @param paths the path inside the document where to get the value from.
  @return this builder for chaining.