diff --git a/examples/connect/databricks/fastapi/app.py b/examples/connect/databricks/fastapi/app.py
index ed01f41c..a3e49e6a 100644
--- a/examples/connect/databricks/fastapi/app.py
+++ b/examples/connect/databricks/fastapi/app.py
@@ -3,11 +3,11 @@
 from __future__ import annotations
 
 import os
-from typing import TYPE_CHECKING, Annotated
 
 from databricks import sql
 from databricks.sdk.core import Config, databricks_cli
 from fastapi import FastAPI, Header
+from typing_extensions import TYPE_CHECKING, Annotated
 
 from posit.connect.external.databricks import PositCredentialsStrategy
 
diff --git a/integration/tests/posit/connect/test_content_item_permissions.py b/integration/tests/posit/connect/test_content_item_permissions.py
index 518178d5..9f3ee04b 100644
--- a/integration/tests/posit/connect/test_content_item_permissions.py
+++ b/integration/tests/posit/connect/test_content_item_permissions.py
@@ -1,8 +1,7 @@
 from __future__ import annotations
 
-from typing import TYPE_CHECKING
-
 import pytest
+from typing_extensions import TYPE_CHECKING
 
 from posit import connect
 
diff --git a/src/posit/connect/_api.py b/src/posit/connect/_api.py
index 29325158..f45dc0ee 100644
--- a/src/posit/connect/_api.py
+++ b/src/posit/connect/_api.py
@@ -4,7 +4,8 @@
 from __future__ import annotations
 
 from collections.abc import Mapping
-from typing import TYPE_CHECKING, Any, Optional, cast
+
+from typing_extensions import TYPE_CHECKING, Any, Optional, cast
 
 from ._api_call import ApiCallMixin, get_api
 from ._json import Jsonifiable, JsonifiableDict, ResponseAttrs
diff --git a/src/posit/connect/_api_call.py b/src/posit/connect/_api_call.py
index 56ce70f6..0de5f0ba 100644
--- a/src/posit/connect/_api_call.py
+++ b/src/posit/connect/_api_call.py
@@ -1,7 +1,8 @@
 from __future__ import annotations
 
 import posixpath
-from typing import TYPE_CHECKING, Protocol
+
+from typing_extensions import TYPE_CHECKING, Protocol
 
 if TYPE_CHECKING:
     from ._json import Jsonifiable
diff --git a/src/posit/connect/_json.py b/src/posit/connect/_json.py
index 62f28f82..85f331fa 100644
--- a/src/posit/connect/_json.py
+++ b/src/posit/connect/_json.py
@@ -1,4 +1,4 @@
-from typing import Dict, List, Tuple, TypeVar, Union
+from typing_extensions import Dict, List, Tuple, TypeVar, Union
 
 # Implemented in https://github.com/posit-dev/py-shiny/blob/415ced034e6c500adda524abb7579731c32088b5/shiny/types.py#L357-L386
 # Table from: https://github.com/python/cpython/blob/df1eec3dae3b1eddff819fd70f58b03b3fbd0eda/Lib/json/encoder.py#L77-L95
diff --git a/src/posit/connect/_utils.py b/src/posit/connect/_utils.py
index 26842bbc..e279f3b7 100644
--- a/src/posit/connect/_utils.py
+++ b/src/posit/connect/_utils.py
@@ -1,6 +1,6 @@
 from __future__ import annotations
 
-from typing import Any
+from typing_extensions import Any
 
 
 def drop_none(x: dict[str, Any]) -> dict[str, Any]:
diff --git a/src/posit/connect/bundles.py b/src/posit/connect/bundles.py
index 515751fa..5dba4ee4 100644
--- a/src/posit/connect/bundles.py
+++ b/src/posit/connect/bundles.py
@@ -3,7 +3,8 @@
 from __future__ import annotations
 
 import io
-from typing import TYPE_CHECKING, List
+
+from typing_extensions import TYPE_CHECKING, List
 
 from . import resources, tasks
 
@@ -11,11 +12,11 @@
     from .context import Context
 
 
-class BundleMetadata(resources.Resource):
+class BundleMetadata(resources.BaseResource):
     pass
 
 
-class Bundle(resources.Resource):
+class Bundle(resources.BaseResource):
     @property
     def metadata(self) -> BundleMetadata:
         return BundleMetadata(self._ctx, **self.get("metadata", {}))
diff --git a/src/posit/connect/client.py b/src/posit/connect/client.py
index f0f5c3a1..10b02c45 100644
--- a/src/posit/connect/client.py
+++ b/src/posit/connect/client.py
@@ -2,9 +2,11 @@
 
 from __future__ import annotations
 
-from typing import TYPE_CHECKING, overload
-
 from requests import Response, Session
+from typing_extensions import TYPE_CHECKING, overload
+
+from posit.connect.environments import Environment
+from posit.connect.packages import Package
 
 from . import hooks, me
 from .auth import Auth
@@ -299,7 +301,7 @@ def oauth(self) -> OAuth:
     @property
     @requires(version="2024.11.0")
     def packages(self) -> Packages:
-        return _PaginatedResourceSequence(self._ctx, "v1/packages", uid="name")
+        return _PaginatedResourceSequence[Package](self._ctx, "v1/packages", uid="name")
 
     @property
     def vanities(self) -> Vanities:
@@ -312,7 +314,7 @@ def system(self) -> System:
     @property
     @requires(version="2023.05.0")
     def environments(self) -> Environments:
-        return _ResourceSequence(self._ctx, "v1/environments")
+        return _ResourceSequence[Environment](self._ctx, "v1/environments")
 
     def __del__(self):
         """Close the session when the Client instance is deleted."""
diff --git a/src/posit/connect/config.py b/src/posit/connect/config.py
index 59d03c87..500bda73 100644
--- a/src/posit/connect/config.py
+++ b/src/posit/connect/config.py
@@ -1,7 +1,8 @@
 """Client configuration."""
 
 import os
-from typing import Optional
+
+from typing_extensions import Optional
 
 from . import urls
 
diff --git a/src/posit/connect/content.py b/src/posit/connect/content.py
index a98e9a64..f7a3fdb8 100644
--- a/src/posit/connect/content.py
+++ b/src/posit/connect/content.py
@@ -4,18 +4,21 @@
 
 import posixpath
 import time
-from typing import (
+
+from typing_extensions import (
     TYPE_CHECKING,
     Any,
     List,
     Literal,
+    NotRequired,
     Optional,
+    Required,
+    TypedDict,
+    Unpack,
     cast,
     overload,
 )
 
-from typing_extensions import NotRequired, Required, TypedDict, Unpack
-
 from . import tasks
 from ._api import ApiDictEndpoint, JsonifiableDict
 from .bundles import Bundles
@@ -24,7 +27,7 @@
 from .errors import ClientError
 from .oauth.associations import ContentItemAssociations
 from .permissions import Permissions
-from .resources import Active, Resource, Resources, _ResourceSequence
+from .resources import Active, BaseResource, Resources, _ResourceSequence
 from .tags import ContentItemTags
 from .vanities import VanityMixin
 from .variants import Variants
@@ -160,7 +163,7 @@ def update(
         )
 
 
-class ContentItemOAuth(Resource):
+class ContentItemOAuth(BaseResource):
     def __init__(self, ctx: Context, content_guid: str) -> None:
         super().__init__(ctx)
         self["content_guid"] = content_guid
@@ -170,11 +173,11 @@ def associations(self) -> ContentItemAssociations:
         return ContentItemAssociations(self._ctx, content_guid=self["content_guid"])
 
 
-class ContentItemOwner(Resource):
+class ContentItemOwner(BaseResource):
     pass
 
 
-class ContentItem(Active, VanityMixin, Resource):
+class ContentItem(Active, VanityMixin, BaseResource):
     class _AttrsBase(TypedDict, total=False):
         # # `name` will be set by other _Attrs classes
         # name: str
@@ -376,7 +379,7 @@ def restart(self) -> None:
                 f"Restart not supported for this application mode: {self['app_mode']}. Did you need to use the 'render()' method instead? Note that some application modes do not support 'render()' or 'restart()'.",
             )
 
-    def update(
+    def update(  # type: ignore[reportIncompatibleMethodOverride]
         self,
         **attrs: Unpack[ContentItem._Attrs],
     ) -> None:
diff --git a/src/posit/connect/context.py b/src/posit/connect/context.py
index ec7ff55a..dbc456b7 100644
--- a/src/posit/connect/context.py
+++ b/src/posit/connect/context.py
@@ -2,9 +2,9 @@
 
 import functools
 import weakref
-from typing import TYPE_CHECKING, Protocol
 
 from packaging.version import Version
+from typing_extensions import TYPE_CHECKING, Protocol
 
 if TYPE_CHECKING:
     from .client import Client
diff --git a/src/posit/connect/cursors.py b/src/posit/connect/cursors.py
index 22f406e1..414d965d 100644
--- a/src/posit/connect/cursors.py
+++ b/src/posit/connect/cursors.py
@@ -1,7 +1,8 @@
 from __future__ import annotations
 
 from dataclasses import dataclass
-from typing import TYPE_CHECKING, Any, Generator, List
+
+from typing_extensions import TYPE_CHECKING, Any, Generator, List
 
 if TYPE_CHECKING:
     from .context import Context
diff --git a/src/posit/connect/env.py b/src/posit/connect/env.py
index 5ca26cd2..f801dc00 100644
--- a/src/posit/connect/env.py
+++ b/src/posit/connect/env.py
@@ -1,6 +1,6 @@
 from __future__ import annotations
 
-from typing import TYPE_CHECKING, Any, Iterator, List, Mapping, MutableMapping, Optional
+from typing_extensions import TYPE_CHECKING, Any, Iterator, List, Mapping, MutableMapping, Optional
 
 from .resources import Resources
 
diff --git a/src/posit/connect/environments.py b/src/posit/connect/environments.py
index 4b229fa9..1fb78b59 100644
--- a/src/posit/connect/environments.py
+++ b/src/posit/connect/environments.py
@@ -1,19 +1,17 @@
 from __future__ import annotations
 
 from abc import abstractmethod
-from collections.abc import Mapping, Sized
 
 from typing_extensions import (
-    Any,
     List,
     Literal,
     Protocol,
-    SupportsIndex,
     TypedDict,
-    overload,
     runtime_checkable,
 )
 
+from .resources import Resource, ResourceSequence
+
 MatchingType = Literal["any", "exact", "none"]
 """Directions for how environments are considered for selection.
 
@@ -40,7 +38,7 @@ class Installations(TypedDict):
     """Interpreter installations in an execution environment."""
 
 
-class Environment(Mapping[str, Any]):
+class Environment(Resource):
     @abstractmethod
     def destroy(self) -> None:
         """Destroy the environment.
@@ -95,13 +93,7 @@ def update(
 
 
 @runtime_checkable
-class Environments(Sized, Protocol):
-    @overload
-    def __getitem__(self, index: SupportsIndex) -> Environment: ...
-
-    @overload
-    def __getitem__(self, index: slice) -> List[Environment]: ...
-
+class Environments(ResourceSequence[Environment], Protocol):
     def create(
         self,
         *,
@@ -217,4 +209,3 @@ def find_by(
         ----
         This action requires administrator or publisher privileges.
         """
-        ...
diff --git a/src/posit/connect/errors.py b/src/posit/connect/errors.py
index 8e8bf8db..e7ef7997 100644
--- a/src/posit/connect/errors.py
+++ b/src/posit/connect/errors.py
@@ -1,5 +1,6 @@
 import json
-from typing import Any
+
+from typing_extensions import Any
 
 
 class ClientError(Exception):
diff --git a/src/posit/connect/external/databricks.py b/src/posit/connect/external/databricks.py
index e73c5f71..0c9ad886 100644
--- a/src/posit/connect/external/databricks.py
+++ b/src/posit/connect/external/databricks.py
@@ -6,9 +6,9 @@
 """
 
 import abc
-from typing import Callable, Dict, Optional
 
 import requests
+from typing_extensions import Callable, Dict, Optional
 
 from ..client import Client
 from ..oauth import Credentials
diff --git a/src/posit/connect/external/snowflake.py b/src/posit/connect/external/snowflake.py
index 7f5ec923..1bc5dd74 100644
--- a/src/posit/connect/external/snowflake.py
+++ b/src/posit/connect/external/snowflake.py
@@ -3,7 +3,7 @@
 NOTE: The APIs in this module are provided as a convenience and are subject to breaking changes.
 """
 
-from typing import Optional
+from typing_extensions import Optional
 
 from ..client import Client
 from .external import is_local
diff --git a/src/posit/connect/groups.py b/src/posit/connect/groups.py
index 717b18d9..36f530e4 100644
--- a/src/posit/connect/groups.py
+++ b/src/posit/connect/groups.py
@@ -2,10 +2,10 @@
 
 from __future__ import annotations
 
-from typing import TYPE_CHECKING, List, Optional, overload
+from typing_extensions import TYPE_CHECKING, List, Optional, overload
 
 from .paginator import Paginator
-from .resources import Resource, Resources
+from .resources import BaseResource, Resources
 
 if TYPE_CHECKING:
     import requests
@@ -14,7 +14,7 @@
     from .users import User
 
 
-class Group(Resource):
+class Group(BaseResource):
     def __init__(self, ctx: Context, **kwargs) -> None:
         super().__init__(ctx, **kwargs)
         self._ctx: Context = ctx
diff --git a/src/posit/connect/jobs.py b/src/posit/connect/jobs.py
index d9124f82..2fdf8b4e 100644
--- a/src/posit/connect/jobs.py
+++ b/src/posit/connect/jobs.py
@@ -1,18 +1,14 @@
 from __future__ import annotations
 
-from abc import abstractmethod
-from collections.abc import Mapping, Sized
-from typing import (
-    Any,
+from typing_extensions import (
     Iterable,
-    List,
     Literal,
     Protocol,
-    SupportsIndex,
-    overload,
     runtime_checkable,
 )
 
+from .resources import Resource, ResourceSequence
+
 JobTag = Literal[
     "unknown",
     "build_report",
@@ -43,8 +39,8 @@
 StatusCode = Literal[0, 1, 2]
 
 
-class Job(Mapping[str, Any]):
-    @abstractmethod
+@runtime_checkable
+class Job(Resource, Protocol):
     def destroy(self) -> None:
         """Destroy the job.
 
@@ -59,13 +55,7 @@ def destroy(self) -> None:
 
 
 @runtime_checkable
-class Jobs(Sized, Protocol):
-    @overload
-    def __getitem__(self, index: SupportsIndex) -> Job: ...
-
-    @overload
-    def __getitem__(self, index: slice) -> List[Job]: ...
-
+class Jobs(ResourceSequence[Job], Protocol):
     def fetch(self) -> Iterable[Job]:
         """Fetch all jobs.
 
diff --git a/src/posit/connect/metrics/shiny_usage.py b/src/posit/connect/metrics/shiny_usage.py
index 68a391be..d9657d9f 100644
--- a/src/posit/connect/metrics/shiny_usage.py
+++ b/src/posit/connect/metrics/shiny_usage.py
@@ -1,12 +1,12 @@
 from __future__ import annotations
 
-from typing import List, overload
+from typing_extensions import List, overload
 
 from ..cursors import CursorPaginator
-from ..resources import Resource, Resources
+from ..resources import BaseResource, Resources
 
 
-class ShinyUsageEvent(Resource):
+class ShinyUsageEvent(BaseResource):
     @property
     def content_guid(self) -> str:
         """The associated unique content identifier.
diff --git a/src/posit/connect/metrics/usage.py b/src/posit/connect/metrics/usage.py
index 6714cca7..b513a52f 100644
--- a/src/posit/connect/metrics/usage.py
+++ b/src/posit/connect/metrics/usage.py
@@ -2,15 +2,14 @@
 
 from __future__ import annotations
 
-from typing import List, overload
-
 from requests.sessions import Session as Session
+from typing_extensions import List, overload
 
 from .. import resources
 from . import shiny_usage, visits
 
 
-class UsageEvent(resources.Resource):
+class UsageEvent(resources.BaseResource):
     @staticmethod
     def from_event(
         event: visits.VisitEvent | shiny_usage.ShinyUsageEvent,
diff --git a/src/posit/connect/metrics/visits.py b/src/posit/connect/metrics/visits.py
index 393aae36..503d14af 100644
--- a/src/posit/connect/metrics/visits.py
+++ b/src/posit/connect/metrics/visits.py
@@ -1,12 +1,12 @@
 from __future__ import annotations
 
-from typing import List, overload
+from typing_extensions import List, overload
 
 from ..cursors import CursorPaginator
-from ..resources import Resource, Resources
+from ..resources import BaseResource, Resources
 
 
-class VisitEvent(Resource):
+class VisitEvent(BaseResource):
     @property
     def content_guid(self) -> str:
         """The associated unique content identifier.
diff --git a/src/posit/connect/oauth/associations.py b/src/posit/connect/oauth/associations.py
index 9fc999e6..5d20db02 100644
--- a/src/posit/connect/oauth/associations.py
+++ b/src/posit/connect/oauth/associations.py
@@ -1,12 +1,12 @@
 """OAuth association resources."""
 
-from typing import List
+from typing_extensions import List
 
 from ..context import Context
-from ..resources import Resource, Resources
+from ..resources import BaseResource, Resources
 
 
-class Association(Resource):
+class Association(BaseResource):
     pass
 
 
diff --git a/src/posit/connect/oauth/integrations.py b/src/posit/connect/oauth/integrations.py
index 540cd6f0..7dca39eb 100644
--- a/src/posit/connect/oauth/integrations.py
+++ b/src/posit/connect/oauth/integrations.py
@@ -1,12 +1,12 @@
 """OAuth integration resources."""
 
-from typing import List, Optional, overload
+from typing_extensions import List, Optional, overload
 
-from ..resources import Resource, Resources
+from ..resources import BaseResource, Resources
 from .associations import IntegrationAssociations
 
 
-class Integration(Resource):
+class Integration(BaseResource):
     """OAuth integration resource."""
 
     @property
diff --git a/src/posit/connect/oauth/oauth.py b/src/posit/connect/oauth/oauth.py
index 90df7270..efec4395 100644
--- a/src/posit/connect/oauth/oauth.py
+++ b/src/posit/connect/oauth/oauth.py
@@ -1,9 +1,8 @@
 from __future__ import annotations
 
 import os
-from typing import TYPE_CHECKING, Optional
 
-from typing_extensions import TypedDict
+from typing_extensions import TYPE_CHECKING, Optional, TypedDict
 
 from ..resources import Resources
 from .integrations import Integrations
diff --git a/src/posit/connect/oauth/sessions.py b/src/posit/connect/oauth/sessions.py
index 503ea254..e0db5829 100644
--- a/src/posit/connect/oauth/sessions.py
+++ b/src/posit/connect/oauth/sessions.py
@@ -1,11 +1,11 @@
 """OAuth session resources."""
 
-from typing import List, Optional, overload
+from typing_extensions import List, Optional, overload
 
-from ..resources import Resource, Resources
+from ..resources import BaseResource, Resources
 
 
-class Session(Resource):
+class Session(BaseResource):
     """OAuth session resource."""
 
     def delete(self) -> None:
diff --git a/src/posit/connect/packages.py b/src/posit/connect/packages.py
index 63289c4f..4983eaff 100644
--- a/src/posit/connect/packages.py
+++ b/src/posit/connect/packages.py
@@ -1,28 +1,19 @@
 from __future__ import annotations
 
 from typing_extensions import (
-    Any,
     Iterable,
     Literal,
-    Mapping,
     Protocol,
-    Sized,
-    SupportsIndex,
-    overload,
 )
 
-
-class ContentPackage(Mapping[str, Any]):
-    pass
+from .resources import Resource, ResourceSequence
 
 
-class ContentPackages(Sized, Protocol):
-    @overload
-    def __getitem__(self, index: SupportsIndex) -> ContentPackage: ...
+class ContentPackage(Resource, Protocol):
+    pass
 
-    @overload
-    def __getitem__(self, index: slice) -> ContentPackage: ...
 
+class ContentPackages(ResourceSequence[ContentPackage], Protocol):
     def fetch(
         self,
         *,
@@ -84,17 +75,11 @@ def find_by(
         ...
 
 
-class Package(Mapping[str, Any]):
+class Package(Resource, Protocol):
     pass
 
 
-class Packages(Sized, Protocol):
-    @overload
-    def __getitem__(self, index: SupportsIndex) -> ContentPackage: ...
-
-    @overload
-    def __getitem__(self, index: slice) -> ContentPackage: ...
-
+class Packages(ResourceSequence[Package], Protocol):
     def fetch(
         self,
         *,
diff --git a/src/posit/connect/paginator.py b/src/posit/connect/paginator.py
index 75b224d3..0252e66f 100644
--- a/src/posit/connect/paginator.py
+++ b/src/posit/connect/paginator.py
@@ -1,7 +1,8 @@
 from __future__ import annotations
 
 from dataclasses import dataclass
-from typing import TYPE_CHECKING, Generator, List
+
+from typing_extensions import TYPE_CHECKING, Generator, List
 
 if TYPE_CHECKING:
     from .context import Context
diff --git a/src/posit/connect/permissions.py b/src/posit/connect/permissions.py
index e8afd9c1..4b029cb5 100644
--- a/src/posit/connect/permissions.py
+++ b/src/posit/connect/permissions.py
@@ -2,11 +2,10 @@
 
 from __future__ import annotations
 
-from typing import TYPE_CHECKING, List, Optional, overload
-
 from requests.sessions import Session as Session
+from typing_extensions import TYPE_CHECKING, List, Optional, overload
 
-from .resources import Resource, Resources
+from .resources import BaseResource, Resources
 
 if TYPE_CHECKING:
     from .context import Context
@@ -14,7 +13,7 @@
     from .users import User
 
 
-class Permission(Resource):
+class Permission(BaseResource):
     def destroy(self) -> None:
         """Destroy the permission."""
         path = f"v1/content/{self['content_guid']}/permissions/{self['id']}"
diff --git a/src/posit/connect/resources.py b/src/posit/connect/resources.py
index 66e6058f..5bd5bd5a 100644
--- a/src/posit/connect/resources.py
+++ b/src/posit/connect/resources.py
@@ -3,11 +3,21 @@
 import posixpath
 import warnings
 from abc import ABC
-from typing import (
+
+from typing_extensions import (
     TYPE_CHECKING,
     Any,
+    Hashable,
+    ItemsView,
     Iterable,
+    Iterator,
+    List,
+    Protocol,
     Sequence,
+    SupportsIndex,
+    TypeVar,
+    cast,
+    overload,
 )
 
 from .context import Context
@@ -17,7 +27,7 @@
     from .context import Context
 
 
-class Resource(dict):
+class BaseResource(dict):
     def __init__(self, ctx: Context, /, **kwargs):
         super().__init__(**kwargs)
         self._ctx = ctx
@@ -42,7 +52,7 @@ def __init__(self, ctx: Context) -> None:
         self._ctx = ctx
 
 
-class Active(ABC, Resource):
+class Active(ABC, BaseResource):
     def __init__(self, ctx: Context, path: str, /, **attributes):
         """A dict abstraction for any HTTP endpoint that returns a singular resource.
 
@@ -62,7 +72,13 @@ def __init__(self, ctx: Context, path: str, /, **attributes):
         self._path = path
 
 
-class _Resource(dict):
+class Resource(Protocol):
+    def __getitem__(self, key: Hashable) -> Any: ...
+
+    def items(self) -> ItemsView: ...
+
+
+class _Resource(dict, Resource):
     def __init__(self, ctx: Context, path: str, **attributes):
         self._ctx = ctx
         self._path = path
@@ -77,11 +93,42 @@ def update(self, **attributes):  # type: ignore[reportIncompatibleMethodOverride
         super().update(**result)
 
 
-class _ResourceSequence(Sequence):
-    def __init__(self, ctx: Context, path: str, *, uid: str = "guid"):
+_T = TypeVar("_T", bound=Resource)
+_T_co = TypeVar("_T_co", bound=Resource, covariant=True)
+
+
+class ResourceFactory(Protocol[_T_co]):
+    def __call__(self, ctx: Context, path: str, **attributes: Any) -> _T_co: ...
+
+
+class ResourceSequence(Protocol[_T]):
+    @overload
+    def __getitem__(self, index: SupportsIndex, /) -> _T: ...
+
+    @overload
+    def __getitem__(self, index: slice, /) -> List[_T]: ...
+
+    def __len__(self) -> int: ...
+
+    def __iter__(self) -> Iterator[_T]: ...
+
+    def __str__(self) -> str: ...
+
+    def __repr__(self) -> str: ...
+
+
+class _ResourceSequence(Sequence[_T], ResourceSequence[_T]):
+    def __init__(
+        self,
+        ctx: Context,
+        path: str,
+        factory: ResourceFactory[_T_co] = _Resource,
+        uid: str = "guid",
+    ):
         self._ctx = ctx
         self._path = path
         self._uid = uid
+        self._factory = factory
 
     def __getitem__(self, index):
         return list(self.fetch())[index]
@@ -89,7 +136,7 @@ def __getitem__(self, index):
     def __len__(self) -> int:
         return len(list(self.fetch()))
 
-    def __iter__(self):
+    def __iter__(self) -> Iterator[_T]:
         return iter(self.fetch())
 
     def __str__(self) -> str:
@@ -98,32 +145,37 @@ def __str__(self) -> str:
     def __repr__(self) -> str:
         return repr(self.fetch())
 
-    def create(self, **attributes: Any) -> Any:
+    def create(self, **attributes: Any) -> _T:
         response = self._ctx.client.post(self._path, json=attributes)
         result = response.json()
         uid = result[self._uid]
         path = posixpath.join(self._path, uid)
-        return _Resource(self._ctx, path, **result)
+        resource = self._factory(self._ctx, path, **result)
+        resource = cast(_T, resource)
+        return resource
 
-    def fetch(self, **conditions) -> Iterable[Any]:
+    def fetch(self, **conditions: Any) -> Iterable[_T]:
         response = self._ctx.client.get(self._path, params=conditions)
         results = response.json()
-        resources = []
+        resources: List[_T] = []
         for result in results:
             uid = result[self._uid]
             path = posixpath.join(self._path, uid)
-            resource = _Resource(self._ctx, path, **result)
+            resource = self._factory(self._ctx, path, **result)
+            resource = cast(_T, resource)
             resources.append(resource)
 
         return resources
 
-    def find(self, *args: str) -> Any:
+    def find(self, *args: str) -> _T:
         path = posixpath.join(self._path, *args)
         response = self._ctx.client.get(path)
         result = response.json()
-        return _Resource(self._ctx, path, **result)
+        resource = self._factory(self._ctx, path, **result)
+        resource = cast(_T, resource)
+        return resource
 
-    def find_by(self, **conditions) -> Any | None:
+    def find_by(self, **conditions: Any) -> _T | None:
         """
         Find the first record matching the specified conditions.
 
@@ -142,8 +194,8 @@ def find_by(self, **conditions) -> Any | None:
         return next((v for v in collection if v.items() >= conditions.items()), None)
 
 
-class _PaginatedResourceSequence(_ResourceSequence):
-    def fetch(self, **conditions):
+class _PaginatedResourceSequence(_ResourceSequence[_T]):
+    def fetch(self, **conditions: Any) -> Iterable[_T]:
         paginator = Paginator(self._ctx, self._path, dict(**conditions))
         for page in paginator.fetch_pages():
             resources = []
@@ -151,6 +203,7 @@ def fetch(self, **conditions):
             for result in results:
                 uid = result[self._uid]
                 path = posixpath.join(self._path, uid)
-                resource = _Resource(self._ctx, path, **result)
+                resource = self._factory(self._ctx, path, **result)
+                resource = cast(_T, resource)
                 resources.append(resource)
             yield from resources
diff --git a/src/posit/connect/system.py b/src/posit/connect/system.py
index 446eff4f..46353fd5 100644
--- a/src/posit/connect/system.py
+++ b/src/posit/connect/system.py
@@ -2,9 +2,7 @@
 
 from __future__ import annotations
 
-from typing import TYPE_CHECKING, List, Literal, overload
-
-from typing_extensions import TypedDict, Unpack
+from typing_extensions import TYPE_CHECKING, List, Literal, TypedDict, Unpack, overload
 
 from .context import ContextManager
 from .resources import Active
diff --git a/src/posit/connect/tags.py b/src/posit/connect/tags.py
index 502a7b49..0ff303ae 100644
--- a/src/posit/connect/tags.py
+++ b/src/posit/connect/tags.py
@@ -1,9 +1,8 @@
 from __future__ import annotations
 
 from abc import ABC, abstractmethod
-from typing import TYPE_CHECKING, Optional, overload
 
-from typing_extensions import NotRequired, TypedDict, Unpack
+from typing_extensions import TYPE_CHECKING, NotRequired, Optional, TypedDict, Unpack, overload
 
 from .context import Context, ContextManager
 from .resources import Active
diff --git a/src/posit/connect/tasks.py b/src/posit/connect/tasks.py
index 907a458f..ac6b2931 100644
--- a/src/posit/connect/tasks.py
+++ b/src/posit/connect/tasks.py
@@ -2,12 +2,12 @@
 
 from __future__ import annotations
 
-from typing import overload
+from typing_extensions import overload
 
 from . import resources
 
 
-class Task(resources.Resource):
+class Task(resources.BaseResource):
     @property
     def is_finished(self) -> bool:
         """The task state.
diff --git a/src/posit/connect/users.py b/src/posit/connect/users.py
index f002cf88..a925df90 100644
--- a/src/posit/connect/users.py
+++ b/src/posit/connect/users.py
@@ -2,21 +2,27 @@
 
 from __future__ import annotations
 
-from typing import TYPE_CHECKING, List, Literal
-
-from typing_extensions import NotRequired, Required, TypedDict, Unpack
+from typing_extensions import (
+    TYPE_CHECKING,
+    List,
+    Literal,
+    NotRequired,
+    Required,
+    TypedDict,
+    Unpack,
+)
 
 from . import me
 from .content import Content
 from .paginator import Paginator
-from .resources import Resource, Resources
+from .resources import BaseResource, Resources
 
 if TYPE_CHECKING:
     from .context import Context
     from .groups import Group
 
 
-class User(Resource):
+class User(BaseResource):
     @property
     def content(self) -> Content:
         return Content(self._ctx, owner_guid=self["guid"])
diff --git a/src/posit/connect/vanities.py b/src/posit/connect/vanities.py
index 75becc6f..3ab9f4f2 100644
--- a/src/posit/connect/vanities.py
+++ b/src/posit/connect/vanities.py
@@ -1,13 +1,11 @@
-from typing import Callable, List, Optional
-
-from typing_extensions import NotRequired, Required, TypedDict, Unpack
+from typing_extensions import Callable, List, NotRequired, Optional, Required, TypedDict, Unpack
 
 from .context import Context
 from .errors import ClientError
-from .resources import Resource, Resources
+from .resources import BaseResource, Resources
 
 
-class Vanity(Resource):
+class Vanity(BaseResource):
     """A vanity resource.
 
     Vanities maintain custom URL paths assigned to content.
@@ -115,7 +113,7 @@ def all(self) -> List[Vanity]:
         return [Vanity(self._ctx, **result) for result in results]
 
 
-class VanityMixin(Resource):
+class VanityMixin(BaseResource):
     """Mixin class to add a vanity attribute to a resource."""
 
     class HasGuid(TypedDict):
diff --git a/src/posit/connect/variants.py b/src/posit/connect/variants.py
index ba8597c1..2e518fb0 100644
--- a/src/posit/connect/variants.py
+++ b/src/posit/connect/variants.py
@@ -1,11 +1,11 @@
-from typing import List
+from typing_extensions import List
 
 from .context import Context
-from .resources import Resource, Resources
+from .resources import BaseResource, Resources
 from .tasks import Task
 
 
-class Variant(Resource):
+class Variant(BaseResource):
     def render(self) -> Task:
         path = f"variants/{self['id']}/render"
         response = self._ctx.client.post(path)
diff --git a/tests/posit/connect/external/test_databricks.py b/tests/posit/connect/external/test_databricks.py
index 9861b907..134911b1 100644
--- a/tests/posit/connect/external/test_databricks.py
+++ b/tests/posit/connect/external/test_databricks.py
@@ -1,9 +1,9 @@
 import base64
-from typing import Dict
 from unittest.mock import patch
 
 import pytest
 import responses
+from typing_extensions import Dict
 
 from posit.connect import Client
 from posit.connect.external.databricks import (
diff --git a/tests/posit/connect/test_jobs.py b/tests/posit/connect/test_jobs.py
index b2463d98..802dd850 100644
--- a/tests/posit/connect/test_jobs.py
+++ b/tests/posit/connect/test_jobs.py
@@ -1,8 +1,7 @@
-from typing import TYPE_CHECKING
-
 import pytest
 import responses
 from requests.exceptions import HTTPError
+from typing_extensions import TYPE_CHECKING
 
 from posit.connect.client import Client
 
diff --git a/tests/posit/connect/test_resources.py b/tests/posit/connect/test_resources.py
index 28cf6e0e..52536b96 100644
--- a/tests/posit/connect/test_resources.py
+++ b/tests/posit/connect/test_resources.py
@@ -1,15 +1,16 @@
 import warnings
-from typing import Optional
 from unittest import mock
 from unittest.mock import Mock
 
-from posit.connect.resources import Resource
+from typing_extensions import Optional
+
+from posit.connect.resources import BaseResource
 
 config = Mock()
 session = Mock()
 
 
-class FakeResource(Resource):
+class FakeResource(BaseResource):
     @property
     def foo(self) -> Optional[str]:
         return self.get("foo")