code: public java.util.List<FileSystemDescription> getFileSystems() {
          if (fileSystems == null) {
              fileSystems = new com.amazonaws.internal.SdkInternalList<FileSystemDescription>();
          }
          return fileSystems;
      }
docs: <p>
  An array of file system descriptions.
  </p>
  
  @return An array of file system descriptions.