code: public void postEdit(String blogName, Long id, Map<String, ?> detail) throws IOException {
          Map<String, Object> sdetail = JumblrClient.safeOptionMap(detail);
          sdetail.put("id", id);
          requestBuilder.postMultipart(JumblrClient.blogPath(blogName, "/post/edit"), sdetail);
      }
docs: Save edits for a given post
  @param blogName The blog name of the post
  @param id the Post id
  @param detail The detail to save
  @throws IOException if any file specified in detail cannot be read