def identify
      MiniMagick::Tool::Identify.new do |builder|
        yield builder if block_given?
        builder << path
      end
    end
def identify
      MiniMagick::Tool::Identify.new do |builder|
        yield builder if block_given?
        builder << path
      end
    end
Runs `identify` on itself. Accepts an optional block for adding more
 options to `identify`.

 @example
   image = MiniMagick::Image.open("image.jpg")
   image.identify do |b|
     b.verbose
   end # runs `identify -verbose image.jpg`
 @return [String] Output from `identify`
 @yield [MiniMagick::Tool::Identify]