instance method to_rich_text_attributes

# File actiontext/lib/action_text/attachable.rb, line 129
    def to_rich_text_attributes(attributes = {})
      attributes.dup.tap do |attrs|
        attrs[:sgid] = attachable_sgid
        attrs[:content_type] = attachable_content_type
        attrs[:previewable] = true if previewable_attachable?
        attrs[:filename] = attachable_filename
        attrs[:filesize] = attachable_filesize
        attrs[:width] = attachable_metadata[:width]
        attrs[:height] = attachable_metadata[:height]
      end.compact
    end