Add types-setuptools to dev dependencies

poetry.lock

@@ -291,6 +291,14 @@ category = "dev"
 optional = false
 python-versions = ">=3.6"
 
+[[package]]
+name = "types-setuptools"
+version = "57.4.18"
+description = "Typing stubs for setuptools"
+category = "dev"
+optional = false
+python-versions = "*"
+
 [[package]]
 name = "typing-extensions"
 version = "4.3.0"
@@ -333,7 +341,7 @@ testing = ["pytest (>=6)", "pytest-checkdocs (>=2.4)", "pytest-flake8", "pytest-
 [metadata]
 lock-version = "1.1"
 python-versions = "^3.7"
-content-hash = "c66ea55af0c21c5a11c7d309eb16e18238bc7bf5908d0ef2e5b2d7248e72cb30"
+content-hash = "ecb8acab4af64ddf36f5510f9d99cf462b03d9bdbd18042041dc4d374a44a7ba"
 
 [metadata.files]
 atomicwrites = [
@@ -493,6 +501,7 @@ typed-ast = [
     {file = "typed_ast-1.5.4-cp39-cp39-win_amd64.whl", hash = "sha256:0fdbcf2fef0ca421a3f5912555804296f0b0960f0418c440f5d6d3abb549f3e1"},
     {file = "typed_ast-1.5.4.tar.gz", hash = "sha256:39e21ceb7388e4bb37f4c679d72707ed46c2fbf2a5609b8b8ebc4b067d977df2"},
 ]
+types-setuptools = []
 typing-extensions = [
     {file = "typing_extensions-4.3.0-py3-none-any.whl", hash = "sha256:25642c956049920a5aa49edcdd6ab1e06d7e5d467fc00e0506c44ac86fbfca02"},
     {file = "typing_extensions-4.3.0.tar.gz", hash = "sha256:e6d2677a32f47fc7eb2795db1dd15c1f34eff616bcaf2cfb5e997f854fa1c4a6"},

pyproject.toml

@@ -44,6 +44,7 @@ pytest = ">=5.0"
 [tool.poetry.dev-dependencies]
 tox = "^3.25.1"
 mypy = "^0.961"
+types-setuptools = "^57.4.18"
 
 [build-system]
 requires = ["poetry-core>=1.0.0"]