diff --git a/package-lock.json b/package-lock.json
index beb820a..971a0e5 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -219,134 +219,4 @@
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diff --git a/types/main.d.ts b/types/main.d.ts
new file mode 100644
index 0000000..2ed3b78
--- /dev/null
+++ b/types/main.d.ts
@@ -0,0 +1,18 @@
+import * as Discord from 'discord.js';
+
+declare module 'discord-fetch-messages' {
+	/**
+	 * Fetch all the messages from a Discord Guild.
+	 * @param {module:"discord.js".Client} client - Your Discord.js Client.
+	 * @param {string} guildID - The ID of the Guild to be fetch.
+	 * @returns {Promise<module:"discord.js".Message[]>} - All the messages fetched.
+	 */
+	export function fetchGuildMessages(client: Discord.Client, guildID: Discord.Snowflake): Promise<Discord.Message[]>;
+	/**
+	 * Fetch all the messages from a Discord TextChannel.
+	 * @param {module:"discord.js".Client} client - Your Discord.js Client.
+	 * @param {module:"discord.js".TextChannel | module:"discord.js".NewsChannel} channel - The ID of the Discord TextChannel.
+	 * @returns {Promise<module:"discord.js".Message[]>} - All the messages fetched.
+	 */
+	export function fetchChannelMessages(client: Discord.Client, channel: Discord.Channel): Promise<Discord.Message[]>;
+}