select(path) {
    if (arguments.length > 1)
      path = arrayFrom(arguments);

    return this.tree.select(this.path.concat(path));
  }
Method selecting a subpath as a new cursor.

Arity (1):
@param  {path} path    - The path to select.

Arity (*):
@param  {...step} path - The path to select.

@return {Cursor}       - The created cursor.