src/protocol/handlers.js
function kernelInfoHandler(message) {
  var infoMessage = messages.kernelInfoResponse(message);
  messages.write(infoMessage, _session.shell, _session.signer);
}
function kernelInfoHandler(message) {
  var infoMessage = messages.kernelInfoResponse(message);
  messages.write(infoMessage, _session.shell, _session.signer);
}
Handles the kernel info request to produce a kernel info response.