diff --git a/.devcontainer/Dockerfile b/.devcontainer/Dockerfile
index 83bca8f7..ac9a2e75 100644
--- a/.devcontainer/Dockerfile
+++ b/.devcontainer/Dockerfile
@@ -3,7 +3,7 @@ FROM mcr.microsoft.com/vscode/devcontainers/python:0-${VARIANT}
 
 USER vscode
 
-RUN curl -sSf https://rye.astral.sh/get | RYE_VERSION="0.24.0" RYE_INSTALL_OPTION="--yes" bash
+RUN curl -sSf https://rye.astral.sh/get | RYE_VERSION="0.35.0" RYE_INSTALL_OPTION="--yes" bash
 ENV PATH=/home/vscode/.rye/shims:$PATH
 
 RUN echo "[[ -d .venv ]] && source .venv/bin/activate" >> /home/vscode/.bashrc
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index b2a642c4..85135b0f 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -21,7 +21,7 @@ jobs:
           curl -sSf https://rye.astral.sh/get | bash
           echo "$HOME/.rye/shims" >> $GITHUB_PATH
         env:
-          RYE_VERSION: 0.24.0
+          RYE_VERSION: '0.35.0'
           RYE_INSTALL_OPTION: '--yes'
 
       - name: Install dependencies
@@ -41,7 +41,7 @@ jobs:
           curl -sSf https://rye.astral.sh/get | bash
           echo "$HOME/.rye/shims" >> $GITHUB_PATH
         env:
-          RYE_VERSION: 0.24.0
+          RYE_VERSION: '0.35.0'
           RYE_INSTALL_OPTION: '--yes'
 
       - name: Bootstrap
diff --git a/.github/workflows/create-releases.yml b/.github/workflows/create-releases.yml
deleted file mode 100644
index 1332e423..00000000
--- a/.github/workflows/create-releases.yml
+++ /dev/null
@@ -1,38 +0,0 @@
-name: Create releases
-on:
-  schedule:
-    - cron: '0 5 * * *' # every day at 5am UTC
-  push:
-    branches:
-      - v3
-
-jobs:
-  release:
-    name: release
-    if: github.ref == 'refs/heads/v3' && github.repository == 'intercom/python-intercom'
-    runs-on: ubuntu-latest
-
-    steps:
-      - uses: actions/checkout@v4
-
-      - uses: stainless-api/trigger-release-please@v1
-        id: release
-        with:
-          repo: ${{ github.event.repository.full_name }}
-          stainless-api-key: ${{ secrets.STAINLESS_API_KEY }}
-
-      - name: Install Rye
-        if: ${{ steps.release.outputs.releases_created }}
-        run: |
-          curl -sSf https://rye.astral.sh/get | bash
-          echo "$HOME/.rye/shims" >> $GITHUB_PATH
-        env:
-          RYE_VERSION: 0.24.0
-          RYE_INSTALL_OPTION: "--yes"
-
-      - name: Publish to PyPI
-        if: ${{ steps.release.outputs.releases_created }}
-        run: |
-          bash ./bin/publish-pypi
-        env:
-          PYPI_TOKEN: ${{ secrets.INTERCOM_PYPI_TOKEN || secrets.PYPI_TOKEN }}
diff --git a/.github/workflows/handle-release-pr-title-edit.yml b/.github/workflows/handle-release-pr-title-edit.yml
deleted file mode 100644
index e59b28cc..00000000
--- a/.github/workflows/handle-release-pr-title-edit.yml
+++ /dev/null
@@ -1,25 +0,0 @@
-name: Handle release PR title edits
-on:
-  pull_request:
-    types:
-      - edited
-      - unlabeled
-
-jobs:
-  update_pr_content:
-    name: Update pull request content
-    if: |
-      ((github.event.action == 'edited' && github.event.changes.title.from != github.event.pull_request.title) ||
-      (github.event.action == 'unlabeled' && github.event.label.name == 'autorelease: custom version')) &&
-      startsWith(github.event.pull_request.head.ref, 'release-please--') &&
-      github.event.pull_request.state == 'open' &&
-      github.event.sender.login != 'stainless-bot' &&
-      github.event.sender.login != 'stainless-app' &&
-      github.repository == 'intercom/python-intercom'
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/checkout@v4
-      - uses: stainless-api/trigger-release-please@v1
-        with:
-          repo: ${{ github.event.repository.full_name }}
-          stainless-api-key: ${{ secrets.STAINLESS_API_KEY }}
diff --git a/.github/workflows/publish-pypi.yml b/.github/workflows/publish-pypi.yml
index 5bad7258..cec956a3 100644
--- a/.github/workflows/publish-pypi.yml
+++ b/.github/workflows/publish-pypi.yml
@@ -1,9 +1,13 @@
-# workflow for re-running publishing to PyPI in case it fails for some reason
-# you can run this workflow by navigating to https://www.github.com/intercom/python-intercom/actions/workflows/publish-pypi.yml
+# This workflow is triggered when a GitHub release is created.
+# It can also be run manually to re-publish to PyPI in case it failed for some reason.
+# You can run this workflow by navigating to https://www.github.com/intercom/python-intercom/actions/workflows/publish-pypi.yml
 name: Publish PyPI
 on:
   workflow_dispatch:
 
+  release:
+    types: [published]
+
 jobs:
   publish:
     name: publish
@@ -17,8 +21,8 @@ jobs:
           curl -sSf https://rye.astral.sh/get | bash
           echo "$HOME/.rye/shims" >> $GITHUB_PATH
         env:
-          RYE_VERSION: 0.24.0
-          RYE_INSTALL_OPTION: "--yes"
+          RYE_VERSION: '0.35.0'
+          RYE_INSTALL_OPTION: '--yes'
 
       - name: Publish to PyPI
         run: |
diff --git a/.github/workflows/release-doctor.yml b/.github/workflows/release-doctor.yml
index 2f3d2368..aed4ae38 100644
--- a/.github/workflows/release-doctor.yml
+++ b/.github/workflows/release-doctor.yml
@@ -16,5 +16,4 @@ jobs:
         run: |
           bash ./bin/check-release-environment
         env:
-          STAINLESS_API_KEY: ${{ secrets.STAINLESS_API_KEY }}
           PYPI_TOKEN: ${{ secrets.INTERCOM_PYPI_TOKEN || secrets.PYPI_TOKEN }}
diff --git a/.gitignore b/.gitignore
index 0f9a66a9..87797408 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,3 +1,4 @@
+.prism.log
 .vscode
 _dev
 
diff --git a/bin/check-release-environment b/bin/check-release-environment
index 8af0f139..688f9f7e 100644
--- a/bin/check-release-environment
+++ b/bin/check-release-environment
@@ -2,10 +2,6 @@
 
 errors=()
 
-if [ -z "${STAINLESS_API_KEY}" ]; then
-  errors+=("The STAINLESS_API_KEY secret has not been set. Please contact Stainless for an API key & set it in your organization secrets on GitHub.")
-fi
-
 if [ -z "${PYPI_TOKEN}" ]; then
   errors+=("The INTERCOM_PYPI_TOKEN secret has not been set. Please set it in either this repository's secrets or your organization secrets.")
 fi
diff --git a/pyproject.toml b/pyproject.toml
index 8c84a65d..e2ec9121 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -58,6 +58,7 @@ dev-dependencies = [
     "nox",
     "dirty-equals>=0.6.0",
     "importlib-metadata>=6.7.0",
+    "rich>=13.7.1",
 
 ]
 
@@ -99,6 +100,21 @@ include = [
 [tool.hatch.build.targets.wheel]
 packages = ["src/python_minus_intercom"]
 
+[tool.hatch.build.targets.sdist]
+# Basically everything except hidden files/directories (such as .github, .devcontainers, .python-version, etc)
+include = [
+  "/*.toml",
+  "/*.json",
+  "/*.lock",
+  "/*.md",
+  "/mypy.ini",
+  "/noxfile.py",
+  "bin/*",
+  "examples/*",
+  "src/*",
+  "tests/*",
+]
+
 [tool.hatch.metadata.hooks.fancy-pypi-readme]
 content-type = "text/markdown"
 
diff --git a/requirements-dev.lock b/requirements-dev.lock
index b6bd92ff..caad919a 100644
--- a/requirements-dev.lock
+++ b/requirements-dev.lock
@@ -6,11 +6,12 @@
 #   features: []
 #   all-features: true
 #   with-sources: false
+#   generate-hashes: false
 
 -e file:.
 annotated-types==0.6.0
     # via pydantic
-anyio==4.1.0
+anyio==4.4.0
     # via httpx
     # via python-intercom
 argcomplete==3.1.2
@@ -44,6 +45,10 @@ idna==3.4
 importlib-metadata==7.0.0
 iniconfig==2.0.0
     # via pytest
+markdown-it-py==3.0.0
+    # via rich
+mdurl==0.1.2
+    # via markdown-it-py
 mypy==1.7.1
 mypy-extensions==1.0.0
     # via mypy
@@ -63,6 +68,8 @@ pydantic==2.7.1
     # via python-intercom
 pydantic-core==2.18.2
     # via pydantic
+pygments==2.18.0
+    # via rich
 pyright==1.1.364
 pytest==7.1.1
     # via pytest-asyncio
@@ -72,6 +79,7 @@ python-dateutil==2.8.2
 pytz==2023.3.post1
     # via dirty-equals
 respx==0.20.2
+rich==13.7.1
 ruff==0.1.9
 setuptools==68.2.2
     # via nodeenv
@@ -86,6 +94,7 @@ tomli==2.0.1
     # via mypy
     # via pytest
 typing-extensions==4.8.0
+    # via anyio
     # via mypy
     # via pydantic
     # via pydantic-core
diff --git a/requirements.lock b/requirements.lock
index eec3d214..4c122c0e 100644
--- a/requirements.lock
+++ b/requirements.lock
@@ -6,11 +6,12 @@
 #   features: []
 #   all-features: true
 #   with-sources: false
+#   generate-hashes: false
 
 -e file:.
 annotated-types==0.6.0
     # via pydantic
-anyio==4.1.0
+anyio==4.4.0
     # via httpx
     # via python-intercom
 certifi==2023.7.22
@@ -38,6 +39,7 @@ sniffio==1.3.0
     # via httpx
     # via python-intercom
 typing-extensions==4.8.0
+    # via anyio
     # via pydantic
     # via pydantic-core
     # via python-intercom
diff --git a/src/python_minus_intercom/_base_client.py b/src/python_minus_intercom/_base_client.py
index e715df67..2e37ff42 100644
--- a/src/python_minus_intercom/_base_client.py
+++ b/src/python_minus_intercom/_base_client.py
@@ -58,6 +58,7 @@
     HttpxSendArgs,
     AsyncTransport,
     RequestOptions,
+    HttpxRequestFiles,
     ModelBuilderProtocol,
 )
 from ._utils import is_dict, is_list, asyncify, is_given, lru_cache, is_mapping
@@ -459,6 +460,7 @@ def _build_request(
         headers = self._build_headers(options)
         params = _merge_mappings(self.default_query, options.params)
         content_type = headers.get("Content-Type")
+        files = options.files
 
         # If the given Content-Type header is multipart/form-data then it
         # has to be removed so that httpx can generate the header with
@@ -472,7 +474,7 @@ def _build_request(
                 headers.pop("Content-Type")
 
             # As we are now sending multipart/form-data instead of application/json
-            # we need to tell httpx to use it, https://www.python-httpx.org/advanced/#multipart-file-encoding
+            # we need to tell httpx to use it, https://www.python-httpx.org/advanced/clients/#multipart-file-encoding
             if json_data:
                 if not is_dict(json_data):
                     raise TypeError(
@@ -480,6 +482,15 @@ def _build_request(
                     )
                 kwargs["data"] = self._serialize_multipartform(json_data)
 
+            # httpx determines whether or not to send a "multipart/form-data"
+            # request based on the truthiness of the "files" argument.
+            # This gets around that issue by generating a dict value that
+            # evaluates to true.
+            #
+            # https://github.com/encode/httpx/discussions/2399#discussioncomment-3814186
+            if not files:
+                files = cast(HttpxRequestFiles, ForceMultipartDict())
+
         # TODO: report this error to httpx
         return self._client.build_request(  # pyright: ignore[reportUnknownMemberType]
             headers=headers,
@@ -492,7 +503,7 @@ def _build_request(
             # https://github.com/microsoft/pyright/issues/3526#event-6715453066
             params=self.qs.stringify(cast(Mapping[str, Any], params)) if params else None,
             json=json_data,
-            files=options.files,
+            files=files,
             **kwargs,
         )
 
@@ -1863,6 +1874,11 @@ def make_request_options(
     return options
 
 
+class ForceMultipartDict(Dict[str, None]):
+    def __bool__(self) -> bool:
+        return True
+
+
 class OtherPlatform:
     def __init__(self, name: str) -> None:
         self.name = name
diff --git a/src/python_minus_intercom/_models.py b/src/python_minus_intercom/_models.py
index 75c68cc7..5d95bb4b 100644
--- a/src/python_minus_intercom/_models.py
+++ b/src/python_minus_intercom/_models.py
@@ -10,6 +10,7 @@
     ClassVar,
     Protocol,
     Required,
+    ParamSpec,
     TypedDict,
     TypeGuard,
     final,
@@ -67,6 +68,9 @@
 __all__ = ["BaseModel", "GenericModel"]
 
 _T = TypeVar("_T")
+_BaseModelT = TypeVar("_BaseModelT", bound="BaseModel")
+
+P = ParamSpec("P")
 
 
 @runtime_checkable
@@ -379,6 +383,29 @@ def is_basemodel_type(type_: type) -> TypeGuard[type[BaseModel] | type[GenericMo
     return issubclass(origin, BaseModel) or issubclass(origin, GenericModel)
 
 
+def build(
+    base_model_cls: Callable[P, _BaseModelT],
+    *args: P.args,
+    **kwargs: P.kwargs,
+) -> _BaseModelT:
+    """Construct a BaseModel class without validation.
+
+    This is useful for cases where you need to instantiate a `BaseModel`
+    from an API response as this provides type-safe params which isn't supported
+    by helpers like `construct_type()`.
+
+    ```py
+    build(MyModel, my_field_a="foo", my_field_b=123)
+    ```
+    """
+    if args:
+        raise TypeError(
+            "Received positional arguments which are not supported; Keyword arguments must be used instead",
+        )
+
+    return cast(_BaseModelT, construct_type(type_=base_model_cls, value=kwargs))
+
+
 def construct_type(*, value: object, type_: object) -> object:
     """Loose coercion to the expected type with construction of nested values.
 
diff --git a/src/python_minus_intercom/_utils/__init__.py b/src/python_minus_intercom/_utils/__init__.py
index 667e2473..3efe66c8 100644
--- a/src/python_minus_intercom/_utils/__init__.py
+++ b/src/python_minus_intercom/_utils/__init__.py
@@ -49,4 +49,7 @@
     maybe_transform as maybe_transform,
     async_maybe_transform as async_maybe_transform,
 )
-from ._reflection import function_has_argument as function_has_argument
+from ._reflection import (
+    function_has_argument as function_has_argument,
+    assert_signatures_in_sync as assert_signatures_in_sync,
+)
diff --git a/src/python_minus_intercom/_utils/_reflection.py b/src/python_minus_intercom/_utils/_reflection.py
index e134f58e..9a53c7bd 100644
--- a/src/python_minus_intercom/_utils/_reflection.py
+++ b/src/python_minus_intercom/_utils/_reflection.py
@@ -1,3 +1,5 @@
+from __future__ import annotations
+
 import inspect
 from typing import Any, Callable
 
@@ -6,3 +8,35 @@ def function_has_argument(func: Callable[..., Any], arg_name: str) -> bool:
     """Returns whether or not the given function has a specific parameter"""
     sig = inspect.signature(func)
     return arg_name in sig.parameters
+
+
+def assert_signatures_in_sync(
+    source_func: Callable[..., Any],
+    check_func: Callable[..., Any],
+    *,
+    exclude_params: set[str] = set(),
+) -> None:
+    """Ensure that the signature of the second function matches the first."""
+
+    check_sig = inspect.signature(check_func)
+    source_sig = inspect.signature(source_func)
+
+    errors: list[str] = []
+
+    for name, source_param in source_sig.parameters.items():
+        if name in exclude_params:
+            continue
+
+        custom_param = check_sig.parameters.get(name)
+        if not custom_param:
+            errors.append(f"the `{name}` param is missing")
+            continue
+
+        if custom_param.annotation != source_param.annotation:
+            errors.append(
+                f"types for the `{name}` param are do not match; source={repr(source_param.annotation)} checking={repr(source_param.annotation)}"
+            )
+            continue
+
+    if errors:
+        raise AssertionError(f"{len(errors)} errors encountered when comparing signatures:\n\n" + "\n\n".join(errors))