names=meta
visibility=public
kind=defined

--- meta    -> Hash

ヘッダを収録したハッシュを返します。

例:

  require 'open-uri'
  p open('http://example.com/').meta
  #=> {"date"=>"Sun, 04 May 2008 11:26:40 GMT",
       "content-type"=>"text/html;charset=utf-8",
       "server"=>"Apache/2.0.54 (Debian GNU/Linux) mod_ssl/2.0.54 OpenSSL/0.9.7e",
       "transfer-encoding"=>"chunked"}

