def api_resources
      @api_resources ||= YAML::load(File.read(File.expand_path(File.join(File.dirname(__FILE__), "..", 'espn_rb/api_definitions/headline_resources.yaml'))))
    end
def api_resources
      @api_resources ||= YAML::load(File.read(File.expand_path(File.join(File.dirname(__FILE__), "..", 'espn_rb/api_definitions/headline_resources.yaml'))))
    end
@raise [StandardError] Will raise StandardError if api_key isn't specified by either options passed into initialize or set from ENV
 Returns the ESPN resources as defined [here](http://developer.espn.com/docs/headlines#parameters).

 @return [Hash] of sports, urls and their descriptions.