code: def cmd_show(docid):
      
      dsearch = get_docsearch()
      doc = dsearch.get(docid)
      r = {
          'type': str(type(doc)),
          'nb_pages': doc.nb_pages,
          'labels': [l.name for l in doc.labels],
          'first_line': _get_first_line(doc),
          'pages': []
      }
      for page in doc.pages:
          nb_lines = 0
          nb_words = 0
          for line in page.boxes:
              nb_lines += 1
              nb_words += len(line.word_boxes)
          r['pages'].append({
              "n": page.page_nb + 1,
              "lines": nb_lines,
              "words": nb_words,
          })
      reply(r)
docs: Arguments: <doc_id>
  
      Show document information (but not its content, see 'dump').
      See 'search' for the document id.
  
      Possible JSON replies:
          --
          {
              "status": "error", "exception": "yyy",
              "reason": "xxxx", "args": "(xxxx, )"
          }
          --
          {
              "status": "ok",
              "type": "ImgDoc",
              "nb_pages": 3,
              "pages": [
                  {"n": 1, "lines": 10, "words": 22},
                  {"n": 2, "lines": 20, "words": 22},
                  {"n": 3, "lines": 30, "words": 34},
              ],
              "labels": ["aaa", "bbb"],
              "first_line": "vwklsd wldkwq",
          }