def pipeline uri, requests, &block # :yields: responses
    connection_for uri do |connection|
      connection.http.pipeline requests, &block
    end
  end
def pipeline uri, requests, &block # :yields: responses
    connection_for uri do |connection|
      connection.http.pipeline requests, &block
    end
  end
Pipelines +requests+ to the HTTP server at +uri+ yielding responses if a
 block is given.  Returns all responses recieved.

 See
 Net::HTTP::Pipeline[http://docs.seattlerb.org/net-http-pipeline/Net/HTTP/Pipeline.html]
 for further details.

 Only if <tt>net-http-pipeline</tt> was required before
 <tt>net-http-persistent</tt> #pipeline will be present.