docs: function _httpGet( wpreq, callback ) {
  	checkMethodSupport( 'get', wpreq );
  	const url = wpreq.toString();
  
  	let request = _auth( agent.get( url ), wpreq._options );
  	request = _setHeaders( request, wpreq._options );
  
  	return invokeAndPromisify( request, callback, returnBody.bind( null, wpreq ) );
  }