def photo(photo_id, options={})
      response = connection.get do |req|
        req.url "photos/#{photo_id}", options
      end
      return_error_or_body(response, response.body.response.photo)
    end
def photo(photo_id, options={})
      response = connection.get do |req|
        req.url "photos/#{photo_id}", options
      end
      return_error_or_body(response, response.body.response.photo)
    end
Retrieve a photo

 @params [String] photo_id - The ID of the photo