SlashCommandEvent

chat.onSlashCommand("/help", async (event) => {
  // Post visible to everyone in the channel
  await event.channel.post("Here are the available commands...");
});

chat.onSlashCommand("/secret", async (event) => {
  // Post ephemeral (only the invoking user sees it)
  await event.channel.postEphemeral(
    event.user,
    "This is just for you!",
    { fallbackToDM: false }
  );
});

chat.onSlashCommand("/feedback", async (event) => {
  // Open a modal
  await event.openModal({
    type: "modal",
    callbackId: "feedback_modal",
    title: "Submit Feedback",
    children: [{ type: "text_input", id: "feedback", label: "Your feedback" }],
  });
});

openModal(modal: ChatElement): Promise<{ viewId: string } | undefined>