def query_by_resource(verb, hrefs, action, options)
      path = "/tags/by_resource"
      params = {:resource_hrefs => hrefs}
      map_response(make_request(verb, path, params, action, options), path)
    end
def query_by_resource(verb, hrefs, action, options)
      path = "/tags/by_resource"
      params = {:resource_hrefs => hrefs}
      map_response(make_request(verb, path, params, action, options), path)
    end
Query API for tags associated with a set of resources

 @param [Symbol] verb for HTTP REST request
 @param [Array] hrefs for resources whose tags are to be retrieved
 @param [String] action from request type
 @param [Hash] options augmenting or overriding default options for HTTP request

 @return [Hash] tags retrieved with resource href as key and tags array as value