Improved docs and typing

modules/database.py

@@ -1,9 +1,11 @@
 """Module that provides all database collections"""
 
-from async_pymongo import AsyncClient
+from typing import Any, Mapping
+
+from async_pymongo import AsyncClient, AsyncCollection, AsyncDatabase
 from libbot.sync import config_get
 
-db_config = config_get("database")
+db_config: Mapping[str, Any] = config_get("database")
 
 if db_config["user"] is not None and db_config["password"] is not None:
     con_string = "mongodb://{0}:{1}@{2}:{3}/{4}".format(
@@ -19,6 +21,6 @@ else:
     )
 
 db_client = AsyncClient(con_string)
-db = db_client.get_database(name=db_config["name"])
+db: AsyncDatabase = db_client.get_database(name=db_config["name"])
 
-col_users = db.get_collection("users")
+col_users: AsyncCollection = db.get_collection("users")