lib/components/proxy.js
function(client, sinfo) {
  let proxy = client.proxies;
  return !!proxy.sys && !! proxy.sys[sinfo.serverType];
}
function(client, sinfo) {
  let proxy = client.proxies;
  return !!proxy.sys && !! proxy.sys[sinfo.serverType];
}
function ( client , sinfo ) { let proxy = client . proxies ; return ! ! proxy . sys && ! ! proxy . sys [ sinfo . serverType ] ; }
Check a server whether has generated proxy before

@param  {Object}  client rpc client instance
@param  {Object}  sinfo  server info
@return {Boolean}        true or false
Check a server whether has generated proxy before