code: function generatePostHeaders (config, payloadSize) {
  	const postHeaders = {
  		hostname: config.server.hostname,
  		port: config.server.port,
  		path: '/api/lookup',
  		method: 'POST',
  		headers: {
  			'Content-Type': 'application/json',
  			'Content-Length': payloadSize
  		}
  	};
  
  	return postHeaders;
  }
docs: /* Return headers for the POST request.