diff --git a/src/models/activity.rs b/src/models/activity.rs
index ad36ceb..eb3bbb7 100644
--- a/src/models/activity.rs
+++ b/src/models/activity.rs
@@ -4,57 +4,74 @@ use crate::models::activity_data::{
 };
 use serde::Serialize;
 
-/// Test Doc
+/// Represents a Discord Activity object to be send to Discord application.
+/// See https://discord.com/developers/docs/game-sdk/activities#data-models for more information.
 #[derive(Serialize, Debug)]
 pub struct Activity {
+    /// Name of the Discord Application - Read Only.
     #[serde(skip_serializing)]
     name: String,
 
+    /// Type of Activity - Will be discarded by Discord App.
     #[serde(skip_serializing_if = "Option::is_none")]
     #[serde(rename = "type")]
     activity_type: Option<i8>,
 
+    /// Livestream URL, accepts only Twitch and Youtube links - Will be discarded by Discord App.
     #[serde(skip_serializing_if = "Option::is_none")]
     url: Option<String>,
 
+    /// Time of creation of the Activity.
     #[serde(skip_serializing_if = "Option::is_none")]
     created_at: Option<u128>,
 
+    /// Timestamps for the Activity. Used to set the "elapsed / remaining" countdown on Discord Activity.
     #[serde(skip_serializing_if = "Option::is_none")]
     timestamps: Option<Timestamp>,
 
+    /// ID of Discord Application provided when instantiating DiscordClient.
     #[serde(skip_serializing_if = "Option::is_none")]
     application_id: Option<i32>,
 
+    /// First line of Discord Activity.
     #[serde(skip_serializing_if = "Option::is_none")]
     details: Option<String>,
 
+    /// Second line of Discord Activity.
     #[serde(skip_serializing_if = "Option::is_none")]
     state: Option<String>,
 
+    /// Sets a custom Emoji on the Discord Activity - Will be discarded by Discord App.
     #[serde(skip_serializing_if = "Option::is_none")]
     emoji: Option<Emoji>,
 
+    /// Adds a player count after the State.
     #[serde(skip_serializing_if = "Option::is_none")]
     party: Option<Party>,
 
+    /// Activity Large image and Small image.
     #[serde(skip_serializing_if = "Option::is_none")]
     assets: Option<Asset>,
 
+    /// Adds a Secret URI to the activity to enable Chat Join messages.
     #[serde(skip_serializing_if = "Option::is_none")]
     secrets: Option<Secret>,
 
+    /// Whether activity is in an Instance context, like an ongoing match.
     #[serde(skip_serializing_if = "Option::is_none")]
     instance: Option<bool>,
 
+
     #[serde(skip_serializing_if = "Option::is_none")]
     flags: Option<i8>,
 
+    /// List of buttons added at the bottom of the Activity. Up to 2 buttons are supported by Discord.
     #[serde(skip_serializing_if = "Option::is_none")]
     buttons: Option<Vec<Button>>,
 }
 
 impl Activity {
+    /// Instantiates a new Activity.
     pub fn new() -> Activity {
         Self {
             name: "".to_string(),
@@ -75,11 +92,13 @@ impl Activity {
         }
     }
 
+    /// Sets a name for the Activity - Will be discarded by Discord App.
     pub fn set_name(&mut self, name: String) -> &mut Self {
         self.name = name;
         self
     }
 
+    /// Sets a new ActivityType - Will be discarded by Discord App.
     pub fn set_activity_type(&mut self, activity_type: Option<ActivityType>) -> &mut Self {
         match activity_type {
             Some(val) => self.activity_type = Some(val as i8),
@@ -89,61 +108,73 @@ impl Activity {
         self
     }
 
+    /// Sets a streaming URL.
     pub fn set_url(&mut self, url: Option<String>) -> &mut Self {
         self.url = url;
         self
     }
 
+    /// Sets a created_at for the Activity.
     pub fn set_created_at(&mut self, created_at: Option<u128>) -> &mut Self {
         self.created_at = created_at;
         self
     }
 
+    /// Sets new Timestamps for the Activity.
     pub fn set_timestamps(&mut self, timestamps: Option<Timestamp>) -> &mut Self {
         self.timestamps = timestamps;
         self
     }
 
+    /// Sets an Application ID for the Activity - Will be discarded by Discord App.
     pub fn set_application_id(&mut self, application_id: Option<i32>) -> &mut Self {
         self.application_id = application_id;
         self
     }
 
+    /// Sets the details for the current Activity.
     pub fn set_details(&mut self, details: Option<String>) -> &mut Self {
         self.details = details;
         self
     }
 
+    /// Sets a state for the current Activity.
     pub fn set_state(&mut self, state: Option<String>) -> &mut Self {
         self.state = state;
         self
     }
 
+    /// Sets an emoji for the current Activity.
     pub fn set_emoji(&mut self, emoji: Option<Emoji>) -> &mut Self {
         self.emoji = emoji;
         self
     }
 
+    /// Sets the party count for the current Activity.
     pub fn set_party(&mut self, party: Option<Party>) -> &mut Self {
         self.party = party;
         self
     }
 
+    /// Sets the Image Assets for the current Activity.
     pub fn set_assets(&mut self, assets: Option<Asset>) -> &mut Self {
         self.assets = assets;
         self
     }
 
+    /// Sets a Secret for the current Activity.
     pub fn set_secrets(&mut self, secrets: Option<Secret>) -> &mut Self {
         self.secrets = secrets;
         self
     }
 
+    /// Sets the instance boolean for the current Activity.
     pub fn set_instance(&mut self, instance: Option<bool>) -> &mut Self {
         self.instance = instance;
         self
     }
 
+    /// Sets the flags for the current Activity.
     pub fn set_flags(&mut self, flag: Option<ActivityFlag>) -> &mut Self {
         match flag {
             Some(val) => self.flags = Some(val as i8),
@@ -153,6 +184,7 @@ impl Activity {
         self
     }
 
+    /// Sets the Buttons for the current Activity. Up to 2 buttons are supported by Discord.
     pub fn set_buttons(&mut self, buttons: Option<Vec<Button>>) -> &mut Self {
         self.buttons = buttons;
         self