diff --git a/melisa/models/app/shard.py b/melisa/models/app/shard.py
index 799288a..4706a25 100644
--- a/melisa/models/app/shard.py
+++ b/melisa/models/app/shard.py
@@ -10,6 +10,10 @@ from ..user import Activity
 
 
 class Shard:
+    _num_shards: int
+    _shard_id: int
+    _gateway: Gateway
+
     def __init__(self, client, shard_id: int, num_shards: int):
         self._client = client
 
diff --git a/melisa/models/guild/channel.py b/melisa/models/guild/channel.py
index 93cc0da..8c9cf07 100644
--- a/melisa/models/guild/channel.py
+++ b/melisa/models/guild/channel.py
@@ -779,13 +779,13 @@ class TextChannel(MessageableChannel):
         self.id = data["id"]
         self.type = ChannelType(data["type"])
         self.position = data.get("position")
-        self.permission_overwrites = data["permission_overwrites"]
+        self.permission_overwrites = data.get("permission_overwrites")
         self.name = data.get("name")
         self.topic = data.get("topic")
         self.nsfw = data.get("nsfw")
 
         if data.get("last_message_id") is not None:
-            self.last_message_id = Snowflake(data["last_message_id"])
+            self.last_message_id = Snowflake(data.get("last_message_id", 0))
         else:
             self.last_message_id = None
 
@@ -802,7 +802,7 @@ class TextChannel(MessageableChannel):
             self.parent_id = None
 
         if data.get("last_pin_timestamp") is not None:
-            self.last_pin_timestamp = Timestamp.parse(data["last_pin_timestamp"])
+            self.last_pin_timestamp = Timestamp.parse(data.get("last_pin_timestamp", 0))
         else:
             self.last_pin_timestamp = None
 
diff --git a/melisa/models/guild/guild.py b/melisa/models/guild/guild.py
index 4580821..0e4495b 100644
--- a/melisa/models/guild/guild.py
+++ b/melisa/models/guild/guild.py
@@ -10,16 +10,14 @@ from typing import List, Any, Optional, overload, Dict
 from .channel import (
     Channel,
     ChannelType,
-    channel_types_for_converting,
     ThreadsList,
     Thread,
     _choose_channel_type,
-    NoneTypedChannel,
 )
 from ...utils import Snowflake, Timestamp
 from ...utils.api_model import APIModelBase
 from ...utils.conversion import try_enum
-from ...utils.types import APINullable, UNDEFINED
+from ...utils.types import APINullable
 
 
 class DefaultMessageNotificationLevel(IntEnum):
@@ -302,11 +300,11 @@ class Guild(APIModelBase):
     """
 
     id: Snowflake
-    roles: APINullable[List]
-    emojis: APINullable[List]
-    members: APINullable[List]
+    roles: APINullable[Dict]
+    emojis: APINullable[Dict]
+    members: APINullable[Dict]
     threads: APINullable[Dict]
-    presences: APINullable[List]
+    presences: APINullable[Dict]
     channels: APINullable[Dict]
     name: APINullable[str] = None
     icon: APINullable[str] = None
@@ -601,4 +599,4 @@ class UnavailableGuild(APIModelBase):
         self.id = Snowflake(int(data["id"]))
         self.unavailable = data["unavailable"]
 
-        return self
+        return self
\ No newline at end of file
diff --git a/tests/test_caching.py b/tests/test_caching.py
new file mode 100644
index 0000000..63c6fd0
--- /dev/null
+++ b/tests/test_caching.py
@@ -0,0 +1,54 @@
+import pytest
+
+from melisa import CacheManager, Snowflake, Guild, TextChannel
+
+
+class TestCache:
+    @pytest.fixture()
+    def cache(self, cache_params: dict = None):
+        if cache_params is None:
+            cache_params = {}
+
+        return CacheManager(**cache_params)
+
+    def test_count(self, cache):
+        cache._raw_guilds = {
+            Snowflake(123): 123,
+            Snowflake(1234): 1111
+        }
+        cache._raw_users = {
+            Snowflake(123): 123,
+            Snowflake(1234): 1111
+        }
+        cache._raw_dm_channels = {
+            Snowflake(123): 123,
+            Snowflake(1234): 1111
+        }
+        cache._channel_symlinks = {
+            Snowflake(123): 123,
+            Snowflake(1234): 1111
+        }
+
+        assert cache.guilds_count() == 2
+        assert cache.users_count() == 2
+        assert cache.guild_channels_count() == 2
+        assert cache.total_channels_count() == 4
+
+    def test_set_and_get_guild(self, cache):
+        cache.set_guild(
+            Guild.from_dict({"id": "123", "name": "test"})
+        )
+
+        assert cache.get_guild(123).name == "test"
+
+    def test_set_and_get_guild_channel(self, cache):
+        channel = {"id": "456", "name": "test", "type": 0, "guild_id": 123}
+
+        cache.set_guild(
+            Guild.from_dict({"id": "123", "name": "test", "channels": [channel]})
+        )
+        cache.set_guild_channel(
+            TextChannel.from_dict(channel)
+        )
+
+        assert cache.get_guild_channel(456).name == "test"