diff --git a/poetry.lock b/poetry.lock
index 1634969..9bafbac 100644
--- a/poetry.lock
+++ b/poetry.lock
@@ -1,10 +1,9 @@
-# This file is automatically @generated by Poetry 1.4.2 and should not be changed by hand.
+# This file is automatically @generated by Poetry 1.8.3 and should not be changed by hand.
 
 [[package]]
 name = "anyio"
 version = "3.6.2"
 description = "High level compatibility layer for multiple asynchronous event loop implementations"
-category = "dev"
 optional = false
 python-versions = ">=3.6.2"
 files = [
@@ -15,7 +14,6 @@ files = [
 [package.dependencies]
 idna = ">=2.8"
 sniffio = ">=1.1"
-typing-extensions = {version = "*", markers = "python_version < \"3.8\""}
 
 [package.extras]
 doc = ["packaging", "sphinx-autodoc-typehints (>=1.2.0)", "sphinx-rtd-theme"]
@@ -26,7 +24,6 @@ trio = ["trio (>=0.16,<0.22)"]
 name = "atomicwrites"
 version = "1.4.1"
 description = "Atomic file writes."
-category = "dev"
 optional = false
 python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*"
 files = [
@@ -37,7 +34,6 @@ files = [
 name = "attrs"
 version = "22.2.0"
 description = "Classes Without Boilerplate"
-category = "dev"
 optional = false
 python-versions = ">=3.6"
 files = [
@@ -56,7 +52,6 @@ tests-no-zope = ["cloudpickle", "cloudpickle", "hypothesis", "hypothesis", "mypy
 name = "black"
 version = "23.3.0"
 description = "The uncompromising code formatter."
-category = "dev"
 optional = false
 python-versions = ">=3.7"
 files = [
@@ -94,7 +89,6 @@ packaging = ">=22.0"
 pathspec = ">=0.9.0"
 platformdirs = ">=2"
 tomli = {version = ">=1.1.0", markers = "python_version < \"3.11\""}
-typed-ast = {version = ">=1.4.2", markers = "python_version < \"3.8\" and implementation_name == \"cpython\""}
 typing-extensions = {version = ">=3.10.0.0", markers = "python_version < \"3.10\""}
 
 [package.extras]
@@ -107,7 +101,6 @@ uvloop = ["uvloop (>=0.15.2)"]
 name = "certifi"
 version = "2022.12.7"
 description = "Python package for providing Mozilla's CA Bundle."
-category = "dev"
 optional = false
 python-versions = ">=3.6"
 files = [
@@ -119,7 +112,6 @@ files = [
 name = "charset-normalizer"
 version = "3.1.0"
 description = "The Real First Universal Charset Detector. Open, modern and actively maintained alternative to Chardet."
-category = "dev"
 optional = false
 python-versions = ">=3.7.0"
 files = [
@@ -204,7 +196,6 @@ files = [
 name = "click"
 version = "8.1.3"
 description = "Composable command line interface toolkit"
-category = "dev"
 optional = false
 python-versions = ">=3.7"
 files = [
@@ -214,13 +205,11 @@ files = [
 
 [package.dependencies]
 colorama = {version = "*", markers = "platform_system == \"Windows\""}
-importlib-metadata = {version = "*", markers = "python_version < \"3.8\""}
 
 [[package]]
 name = "colorama"
 version = "0.4.6"
 description = "Cross-platform colored terminal text."
-category = "dev"
 optional = false
 python-versions = "!=3.0.*,!=3.1.*,!=3.2.*,!=3.3.*,!=3.4.*,!=3.5.*,!=3.6.*,>=2.7"
 files = [
@@ -232,7 +221,6 @@ files = [
 name = "coverage"
 version = "6.5.0"
 description = "Code coverage measurement for Python"
-category = "dev"
 optional = false
 python-versions = ">=3.7"
 files = [
@@ -295,7 +283,6 @@ toml = ["tomli"]
 name = "deprecated"
 version = "1.2.13"
 description = "Python @deprecated decorator to deprecate old python classes, functions or methods."
-category = "main"
 optional = false
 python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*"
 files = [
@@ -313,7 +300,6 @@ dev = ["PyTest", "PyTest (<5)", "PyTest-Cov", "PyTest-Cov (<2.6)", "bump2version
 name = "fastapi"
 version = "0.89.1"
 description = "FastAPI framework, high performance, easy to learn, fast to code, ready for production"
-category = "dev"
 optional = false
 python-versions = ">=3.7"
 files = [
@@ -335,7 +321,6 @@ test = ["anyio[trio] (>=3.2.1,<4.0.0)", "black (==22.10.0)", "coverage[toml] (>=
 name = "flake8"
 version = "4.0.1"
 description = "the modular source code checker: pep8 pyflakes and co"
-category = "dev"
 optional = false
 python-versions = ">=3.6"
 files = [
@@ -344,7 +329,6 @@ files = [
 ]
 
 [package.dependencies]
-importlib-metadata = {version = "<4.3", markers = "python_version < \"3.8\""}
 mccabe = ">=0.6.0,<0.7.0"
 pycodestyle = ">=2.8.0,<2.9.0"
 pyflakes = ">=2.4.0,<2.5.0"
@@ -353,7 +337,6 @@ pyflakes = ">=2.4.0,<2.5.0"
 name = "ghp-import"
 version = "2.1.0"
 description = "Copy your docs directly to the gh-pages branch."
-category = "dev"
 optional = false
 python-versions = "*"
 files = [
@@ -371,7 +354,6 @@ dev = ["flake8", "markdown", "twine", "wheel"]
 name = "h11"
 version = "0.14.0"
 description = "A pure-Python, bring-your-own-I/O implementation of HTTP/1.1"
-category = "dev"
 optional = false
 python-versions = ">=3.7"
 files = [
@@ -379,14 +361,10 @@ files = [
     {file = "h11-0.14.0.tar.gz", hash = "sha256:8f19fbbe99e72420ff35c00b27a34cb9937e902a8b810e2c88300c6f0a3b699d"},
 ]
 
-[package.dependencies]
-typing-extensions = {version = "*", markers = "python_version < \"3.8\""}
-
 [[package]]
 name = "hiro"
 version = "0.5.1"
 description = "time manipulation utilities for python"
-category = "dev"
 optional = false
 python-versions = "*"
 files = [
@@ -401,7 +379,6 @@ six = ">=1.4.1"
 name = "httpcore"
 version = "0.16.3"
 description = "A minimal low-level HTTP client."
-category = "dev"
 optional = false
 python-versions = ">=3.7"
 files = [
@@ -413,17 +390,16 @@ files = [
 anyio = ">=3.0,<5.0"
 certifi = "*"
 h11 = ">=0.13,<0.15"
-sniffio = ">=1.0.0,<2.0.0"
+sniffio = "==1.*"
 
 [package.extras]
 http2 = ["h2 (>=3,<5)"]
-socks = ["socksio (>=1.0.0,<2.0.0)"]
+socks = ["socksio (==1.*)"]
 
 [[package]]
 name = "httpx"
 version = "0.23.3"
 description = "The next generation HTTP client."
-category = "dev"
 optional = false
 python-versions = ">=3.7"
 files = [
@@ -439,15 +415,14 @@ sniffio = "*"
 
 [package.extras]
 brotli = ["brotli", "brotlicffi"]
-cli = ["click (>=8.0.0,<9.0.0)", "pygments (>=2.0.0,<3.0.0)", "rich (>=10,<13)"]
+cli = ["click (==8.*)", "pygments (==2.*)", "rich (>=10,<13)"]
 http2 = ["h2 (>=3,<5)"]
-socks = ["socksio (>=1.0.0,<2.0.0)"]
+socks = ["socksio (==1.*)"]
 
 [[package]]
 name = "idna"
 version = "3.4"
 description = "Internationalized Domain Names in Applications (IDNA)"
-category = "dev"
 optional = false
 python-versions = ">=3.5"
 files = [
@@ -459,7 +434,6 @@ files = [
 name = "importlib-metadata"
 version = "4.2.0"
 description = "Read metadata from Python packages"
-category = "dev"
 optional = false
 python-versions = ">=3.6"
 files = [
@@ -468,7 +442,6 @@ files = [
 ]
 
 [package.dependencies]
-typing-extensions = {version = ">=3.6.4", markers = "python_version < \"3.8\""}
 zipp = ">=0.5"
 
 [package.extras]
@@ -479,7 +452,6 @@ testing = ["flufl.flake8", "importlib-resources (>=1.3)", "packaging", "pep517",
 name = "importlib-resources"
 version = "5.12.0"
 description = "Read resources from Python packages"
-category = "main"
 optional = false
 python-versions = ">=3.7"
 files = [
@@ -498,7 +470,6 @@ testing = ["flake8 (<5)", "pytest (>=6)", "pytest-black (>=0.3.7)", "pytest-chec
 name = "iniconfig"
 version = "2.0.0"
 description = "brain-dead simple config-ini parsing"
-category = "dev"
 optional = false
 python-versions = ">=3.7"
 files = [
@@ -510,7 +481,6 @@ files = [
 name = "isort"
 version = "4.3.21"
 description = "A Python utility / library to sort Python imports."
-category = "dev"
 optional = false
 python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*"
 files = [
@@ -528,7 +498,6 @@ xdg-home = ["appdirs (>=1.4.0)"]
 name = "jinja2"
 version = "3.1.2"
 description = "A very fast and expressive template engine."
-category = "dev"
 optional = false
 python-versions = ">=3.7"
 files = [
@@ -546,7 +515,6 @@ i18n = ["Babel (>=2.7)"]
 name = "limits"
 version = "3.3.1"
 description = "Rate limiting utilities"
-category = "main"
 optional = false
 python-versions = ">=3.7"
 files = [
@@ -577,7 +545,6 @@ rediscluster = ["redis (>=4.2.0,!=4.5.2,!=4.5.3)"]
 name = "lxml"
 version = "4.9.2"
 description = "Powerful and Pythonic XML processing library combining libxml2/libxslt with the ElementTree API."
-category = "dev"
 optional = false
 python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*, != 3.4.*"
 files = [
@@ -670,7 +637,6 @@ source = ["Cython (>=0.29.7)"]
 name = "markdown"
 version = "3.3.4"
 description = "Python implementation of Markdown."
-category = "dev"
 optional = false
 python-versions = ">=3.6"
 files = [
@@ -678,9 +644,6 @@ files = [
     {file = "Markdown-3.3.4.tar.gz", hash = "sha256:31b5b491868dcc87d6c24b7e3d19a0d730d59d3e46f4eea6430a321bed387a49"},
 ]
 
-[package.dependencies]
-importlib-metadata = {version = "*", markers = "python_version < \"3.8\""}
-
 [package.extras]
 testing = ["coverage", "pyyaml"]
 
@@ -688,7 +651,6 @@ testing = ["coverage", "pyyaml"]
 name = "markupsafe"
 version = "2.1.2"
 description = "Safely add untrusted strings to HTML/XML markup."
-category = "dev"
 optional = false
 python-versions = ">=3.7"
 files = [
@@ -748,7 +710,6 @@ files = [
 name = "mccabe"
 version = "0.6.1"
 description = "McCabe checker, plugin for flake8"
-category = "dev"
 optional = false
 python-versions = "*"
 files = [
@@ -760,7 +721,6 @@ files = [
 name = "mergedeep"
 version = "1.3.4"
 description = "A deep merge function for 🐍."
-category = "dev"
 optional = false
 python-versions = ">=3.6"
 files = [
@@ -772,7 +732,6 @@ files = [
 name = "mkautodoc"
 version = "0.1.0"
 description = "AutoDoc for MarkDown"
-category = "dev"
 optional = false
 python-versions = ">=3.6"
 files = [
@@ -783,7 +742,6 @@ files = [
 name = "mkdocs"
 version = "1.2.4"
 description = "Project documentation with Markdown."
-category = "dev"
 optional = false
 python-versions = ">=3.6"
 files = [
@@ -810,7 +768,6 @@ i18n = ["babel (>=2.9.0)"]
 name = "mock"
 version = "4.0.3"
 description = "Rolling backport of unittest.mock for all Pythons"
-category = "dev"
 optional = false
 python-versions = ">=3.6"
 files = [
@@ -825,63 +782,66 @@ test = ["pytest (<5.4)", "pytest-cov"]
 
 [[package]]
 name = "mypy"
-version = "0.910"
+version = "1.10.0"
 description = "Optional static typing for Python"
-category = "dev"
 optional = false
-python-versions = ">=3.5"
+python-versions = ">=3.8"
 files = [
-    {file = "mypy-0.910-cp35-cp35m-macosx_10_9_x86_64.whl", hash = "sha256:a155d80ea6cee511a3694b108c4494a39f42de11ee4e61e72bc424c490e46457"},
-    {file = "mypy-0.910-cp35-cp35m-manylinux1_x86_64.whl", hash = "sha256:b94e4b785e304a04ea0828759172a15add27088520dc7e49ceade7834275bedb"},
-    {file = "mypy-0.910-cp35-cp35m-manylinux2010_x86_64.whl", hash = "sha256:088cd9c7904b4ad80bec811053272986611b84221835e079be5bcad029e79dd9"},
-    {file = "mypy-0.910-cp35-cp35m-win_amd64.whl", hash = "sha256:adaeee09bfde366d2c13fe6093a7df5df83c9a2ba98638c7d76b010694db760e"},
-    {file = "mypy-0.910-cp36-cp36m-macosx_10_9_x86_64.whl", hash = "sha256:ecd2c3fe726758037234c93df7e98deb257fd15c24c9180dacf1ef829da5f921"},
-    {file = "mypy-0.910-cp36-cp36m-manylinux1_x86_64.whl", hash = "sha256:d9dd839eb0dc1bbe866a288ba3c1afc33a202015d2ad83b31e875b5905a079b6"},
-    {file = "mypy-0.910-cp36-cp36m-manylinux2010_x86_64.whl", hash = "sha256:3e382b29f8e0ccf19a2df2b29a167591245df90c0b5a2542249873b5c1d78212"},
-    {file = "mypy-0.910-cp36-cp36m-win_amd64.whl", hash = "sha256:53fd2eb27a8ee2892614370896956af2ff61254c275aaee4c230ae771cadd885"},
-    {file = "mypy-0.910-cp37-cp37m-macosx_10_9_x86_64.whl", hash = "sha256:b6fb13123aeef4a3abbcfd7e71773ff3ff1526a7d3dc538f3929a49b42be03f0"},
-    {file = "mypy-0.910-cp37-cp37m-manylinux1_x86_64.whl", hash = "sha256:e4dab234478e3bd3ce83bac4193b2ecd9cf94e720ddd95ce69840273bf44f6de"},
-    {file = "mypy-0.910-cp37-cp37m-manylinux2010_x86_64.whl", hash = "sha256:7df1ead20c81371ccd6091fa3e2878559b5c4d4caadaf1a484cf88d93ca06703"},
-    {file = "mypy-0.910-cp37-cp37m-win_amd64.whl", hash = "sha256:0aadfb2d3935988ec3815952e44058a3100499f5be5b28c34ac9d79f002a4a9a"},
-    {file = "mypy-0.910-cp38-cp38-macosx_10_9_x86_64.whl", hash = "sha256:ec4e0cd079db280b6bdabdc807047ff3e199f334050db5cbb91ba3e959a67504"},
-    {file = "mypy-0.910-cp38-cp38-manylinux1_x86_64.whl", hash = "sha256:119bed3832d961f3a880787bf621634ba042cb8dc850a7429f643508eeac97b9"},
-    {file = "mypy-0.910-cp38-cp38-manylinux2010_x86_64.whl", hash = "sha256:866c41f28cee548475f146aa4d39a51cf3b6a84246969f3759cb3e9c742fc072"},
-    {file = "mypy-0.910-cp38-cp38-win_amd64.whl", hash = "sha256:ceb6e0a6e27fb364fb3853389607cf7eb3a126ad335790fa1e14ed02fba50811"},
-    {file = "mypy-0.910-cp39-cp39-macosx_10_9_x86_64.whl", hash = "sha256:1a85e280d4d217150ce8cb1a6dddffd14e753a4e0c3cf90baabb32cefa41b59e"},
-    {file = "mypy-0.910-cp39-cp39-macosx_11_0_arm64.whl", hash = "sha256:42c266ced41b65ed40a282c575705325fa7991af370036d3f134518336636f5b"},
-    {file = "mypy-0.910-cp39-cp39-manylinux1_x86_64.whl", hash = "sha256:3c4b8ca36877fc75339253721f69603a9c7fdb5d4d5a95a1a1b899d8b86a4de2"},
-    {file = "mypy-0.910-cp39-cp39-manylinux2010_x86_64.whl", hash = "sha256:c0df2d30ed496a08de5daed2a9ea807d07c21ae0ab23acf541ab88c24b26ab97"},
-    {file = "mypy-0.910-cp39-cp39-win_amd64.whl", hash = "sha256:c6c2602dffb74867498f86e6129fd52a2770c48b7cd3ece77ada4fa38f94eba8"},
-    {file = "mypy-0.910-py3-none-any.whl", hash = "sha256:ef565033fa5a958e62796867b1df10c40263ea9ded87164d67572834e57a174d"},
-    {file = "mypy-0.910.tar.gz", hash = "sha256:704098302473cb31a218f1775a873b376b30b4c18229421e9e9dc8916fd16150"},
+    {file = "mypy-1.10.0-cp310-cp310-macosx_10_9_x86_64.whl", hash = "sha256:da1cbf08fb3b851ab3b9523a884c232774008267b1f83371ace57f412fe308c2"},
+    {file = "mypy-1.10.0-cp310-cp310-macosx_11_0_arm64.whl", hash = "sha256:12b6bfc1b1a66095ab413160a6e520e1dc076a28f3e22f7fb25ba3b000b4ef99"},
+    {file = "mypy-1.10.0-cp310-cp310-manylinux_2_17_x86_64.manylinux2014_x86_64.whl", hash = "sha256:9e36fb078cce9904c7989b9693e41cb9711e0600139ce3970c6ef814b6ebc2b2"},
+    {file = "mypy-1.10.0-cp310-cp310-musllinux_1_1_x86_64.whl", hash = "sha256:2b0695d605ddcd3eb2f736cd8b4e388288c21e7de85001e9f85df9187f2b50f9"},
+    {file = "mypy-1.10.0-cp310-cp310-win_amd64.whl", hash = "sha256:cd777b780312ddb135bceb9bc8722a73ec95e042f911cc279e2ec3c667076051"},
+    {file = "mypy-1.10.0-cp311-cp311-macosx_10_9_x86_64.whl", hash = "sha256:3be66771aa5c97602f382230165b856c231d1277c511c9a8dd058be4784472e1"},
+    {file = "mypy-1.10.0-cp311-cp311-macosx_11_0_arm64.whl", hash = "sha256:8b2cbaca148d0754a54d44121b5825ae71868c7592a53b7292eeb0f3fdae95ee"},
+    {file = "mypy-1.10.0-cp311-cp311-manylinux_2_17_x86_64.manylinux2014_x86_64.whl", hash = "sha256:1ec404a7cbe9fc0e92cb0e67f55ce0c025014e26d33e54d9e506a0f2d07fe5de"},
+    {file = "mypy-1.10.0-cp311-cp311-musllinux_1_1_x86_64.whl", hash = "sha256:e22e1527dc3d4aa94311d246b59e47f6455b8729f4968765ac1eacf9a4760bc7"},
+    {file = "mypy-1.10.0-cp311-cp311-win_amd64.whl", hash = "sha256:a87dbfa85971e8d59c9cc1fcf534efe664d8949e4c0b6b44e8ca548e746a8d53"},
+    {file = "mypy-1.10.0-cp312-cp312-macosx_10_9_x86_64.whl", hash = "sha256:a781f6ad4bab20eef8b65174a57e5203f4be627b46291f4589879bf4e257b97b"},
+    {file = "mypy-1.10.0-cp312-cp312-macosx_11_0_arm64.whl", hash = "sha256:b808e12113505b97d9023b0b5e0c0705a90571c6feefc6f215c1df9381256e30"},
+    {file = "mypy-1.10.0-cp312-cp312-manylinux_2_17_x86_64.manylinux2014_x86_64.whl", hash = "sha256:8f55583b12156c399dce2df7d16f8a5095291354f1e839c252ec6c0611e86e2e"},
+    {file = "mypy-1.10.0-cp312-cp312-musllinux_1_1_x86_64.whl", hash = "sha256:4cf18f9d0efa1b16478c4c129eabec36148032575391095f73cae2e722fcf9d5"},
+    {file = "mypy-1.10.0-cp312-cp312-win_amd64.whl", hash = "sha256:bc6ac273b23c6b82da3bb25f4136c4fd42665f17f2cd850771cb600bdd2ebeda"},
+    {file = "mypy-1.10.0-cp38-cp38-macosx_10_9_x86_64.whl", hash = "sha256:9fd50226364cd2737351c79807775136b0abe084433b55b2e29181a4c3c878c0"},
+    {file = "mypy-1.10.0-cp38-cp38-macosx_11_0_arm64.whl", hash = "sha256:f90cff89eea89273727d8783fef5d4a934be2fdca11b47def50cf5d311aff727"},
+    {file = "mypy-1.10.0-cp38-cp38-manylinux_2_17_x86_64.manylinux2014_x86_64.whl", hash = "sha256:fcfc70599efde5c67862a07a1aaf50e55bce629ace26bb19dc17cece5dd31ca4"},
+    {file = "mypy-1.10.0-cp38-cp38-musllinux_1_1_x86_64.whl", hash = "sha256:075cbf81f3e134eadaf247de187bd604748171d6b79736fa9b6c9685b4083061"},
+    {file = "mypy-1.10.0-cp38-cp38-win_amd64.whl", hash = "sha256:3f298531bca95ff615b6e9f2fc0333aae27fa48052903a0ac90215021cdcfa4f"},
+    {file = "mypy-1.10.0-cp39-cp39-macosx_10_9_x86_64.whl", hash = "sha256:fa7ef5244615a2523b56c034becde4e9e3f9b034854c93639adb667ec9ec2976"},
+    {file = "mypy-1.10.0-cp39-cp39-macosx_11_0_arm64.whl", hash = "sha256:3236a4c8f535a0631f85f5fcdffba71c7feeef76a6002fcba7c1a8e57c8be1ec"},
+    {file = "mypy-1.10.0-cp39-cp39-manylinux_2_17_x86_64.manylinux2014_x86_64.whl", hash = "sha256:4a2b5cdbb5dd35aa08ea9114436e0d79aceb2f38e32c21684dcf8e24e1e92821"},
+    {file = "mypy-1.10.0-cp39-cp39-musllinux_1_1_x86_64.whl", hash = "sha256:92f93b21c0fe73dc00abf91022234c79d793318b8a96faac147cd579c1671746"},
+    {file = "mypy-1.10.0-cp39-cp39-win_amd64.whl", hash = "sha256:28d0e038361b45f099cc086d9dd99c15ff14d0188f44ac883010e172ce86c38a"},
+    {file = "mypy-1.10.0-py3-none-any.whl", hash = "sha256:f8c083976eb530019175aabadb60921e73b4f45736760826aa1689dda8208aee"},
+    {file = "mypy-1.10.0.tar.gz", hash = "sha256:3d087fcbec056c4ee34974da493a826ce316947485cef3901f511848e687c131"},
 ]
 
 [package.dependencies]
-mypy-extensions = ">=0.4.3,<0.5.0"
-toml = "*"
-typed-ast = {version = ">=1.4.0,<1.5.0", markers = "python_version < \"3.8\""}
-typing-extensions = ">=3.7.4"
+mypy-extensions = ">=1.0.0"
+tomli = {version = ">=1.1.0", markers = "python_version < \"3.11\""}
+typing-extensions = ">=4.1.0"
 
 [package.extras]
 dmypy = ["psutil (>=4.0)"]
-python2 = ["typed-ast (>=1.4.0,<1.5.0)"]
+install-types = ["pip"]
+mypyc = ["setuptools (>=50)"]
+reports = ["lxml"]
 
 [[package]]
 name = "mypy-extensions"
-version = "0.4.4"
-description = "Experimental type system extensions for programs checked with the mypy typechecker."
-category = "dev"
+version = "1.0.0"
+description = "Type system extensions for programs checked with the mypy type checker."
 optional = false
-python-versions = ">=2.7"
+python-versions = ">=3.5"
 files = [
-    {file = "mypy_extensions-0.4.4.tar.gz", hash = "sha256:c8b707883a96efe9b4bb3aaf0dcc07e7e217d7d8368eec4db4049ee9e142f4fd"},
+    {file = "mypy_extensions-1.0.0-py3-none-any.whl", hash = "sha256:4392f6c0eb8a5668a69e23d168ffa70f0be9ccfd32b5cc2d26a34ae5b844552d"},
+    {file = "mypy_extensions-1.0.0.tar.gz", hash = "sha256:75dbf8955dc00442a438fc4d0666508a9a97b6bd41aa2f0ffe9d2f2725af0782"},
 ]
 
 [[package]]
 name = "packaging"
 version = "23.0"
 description = "Core utilities for Python packages"
-category = "main"
 optional = false
 python-versions = ">=3.7"
 files = [
@@ -893,7 +853,6 @@ files = [
 name = "pathspec"
 version = "0.11.1"
 description = "Utility library for gitignore style pattern matching of file paths."
-category = "dev"
 optional = false
 python-versions = ">=3.7"
 files = [
@@ -905,7 +864,6 @@ files = [
 name = "platformdirs"
 version = "3.2.0"
 description = "A small Python package for determining appropriate platform-specific dirs, e.g. a \"user data dir\"."
-category = "dev"
 optional = false
 python-versions = ">=3.7"
 files = [
@@ -913,9 +871,6 @@ files = [
     {file = "platformdirs-3.2.0.tar.gz", hash = "sha256:d5b638ca397f25f979350ff789db335903d7ea010ab28903f57b27e1b16c2b08"},
 ]
 
-[package.dependencies]
-typing-extensions = {version = ">=4.5", markers = "python_version < \"3.8\""}
-
 [package.extras]
 docs = ["furo (>=2022.12.7)", "proselint (>=0.13)", "sphinx (>=6.1.3)", "sphinx-autodoc-typehints (>=1.22,!=1.23.4)"]
 test = ["appdirs (==1.4.4)", "covdefaults (>=2.3)", "pytest (>=7.2.2)", "pytest-cov (>=4)", "pytest-mock (>=3.10)"]
@@ -924,7 +879,6 @@ test = ["appdirs (==1.4.4)", "covdefaults (>=2.3)", "pytest (>=7.2.2)", "pytest-
 name = "pluggy"
 version = "1.0.0"
 description = "plugin and hook calling mechanisms for python"
-category = "dev"
 optional = false
 python-versions = ">=3.6"
 files = [
@@ -932,9 +886,6 @@ files = [
     {file = "pluggy-1.0.0.tar.gz", hash = "sha256:4224373bacce55f955a878bf9cfa763c1e360858e330072059e10bad68531159"},
 ]
 
-[package.dependencies]
-importlib-metadata = {version = ">=0.12", markers = "python_version < \"3.8\""}
-
 [package.extras]
 dev = ["pre-commit", "tox"]
 testing = ["pytest", "pytest-benchmark"]
@@ -943,7 +894,6 @@ testing = ["pytest", "pytest-benchmark"]
 name = "py"
 version = "1.11.0"
 description = "library with cross-python path, ini-parsing, io, code, log facilities"
-category = "dev"
 optional = false
 python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*, !=3.4.*"
 files = [
@@ -955,7 +905,6 @@ files = [
 name = "pycodestyle"
 version = "2.8.0"
 description = "Python style guide checker"
-category = "dev"
 optional = false
 python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*, !=3.4.*"
 files = [
@@ -967,7 +916,6 @@ files = [
 name = "pydantic"
 version = "1.10.7"
 description = "Data validation and settings management using python type hints"
-category = "dev"
 optional = false
 python-versions = ">=3.7"
 files = [
@@ -1020,7 +968,6 @@ email = ["email-validator (>=1.0.3)"]
 name = "pyflakes"
 version = "2.4.0"
 description = "passive checker of Python programs"
-category = "dev"
 optional = false
 python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*"
 files = [
@@ -1032,7 +979,6 @@ files = [
 name = "pytest"
 version = "6.2.5"
 description = "pytest: simple powerful testing with Python"
-category = "dev"
 optional = false
 python-versions = ">=3.6"
 files = [
@@ -1044,7 +990,6 @@ files = [
 atomicwrites = {version = ">=1.0", markers = "sys_platform == \"win32\""}
 attrs = ">=19.2.0"
 colorama = {version = "*", markers = "sys_platform == \"win32\""}
-importlib-metadata = {version = ">=0.12", markers = "python_version < \"3.8\""}
 iniconfig = "*"
 packaging = "*"
 pluggy = ">=0.12,<2.0"
@@ -1058,7 +1003,6 @@ testing = ["argcomplete", "hypothesis (>=3.56)", "mock", "nose", "requests", "xm
 name = "python-dateutil"
 version = "2.8.2"
 description = "Extensions to the standard Python datetime module"
-category = "dev"
 optional = false
 python-versions = "!=3.0.*,!=3.1.*,!=3.2.*,>=2.7"
 files = [
@@ -1073,7 +1017,6 @@ six = ">=1.5"
 name = "pyyaml"
 version = "6.0"
 description = "YAML parser and emitter for Python"
-category = "dev"
 optional = false
 python-versions = ">=3.6"
 files = [
@@ -1123,7 +1066,6 @@ files = [
 name = "pyyaml-env-tag"
 version = "0.1"
 description = "A custom YAML tag for referencing environment variables in YAML files. "
-category = "dev"
 optional = false
 python-versions = ">=3.6"
 files = [
@@ -1138,7 +1080,6 @@ pyyaml = "*"
 name = "redis"
 version = "3.5.3"
 description = "Python client for Redis key-value store"
-category = "main"
 optional = true
 python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*, !=3.4.*"
 files = [
@@ -1153,7 +1094,6 @@ hiredis = ["hiredis (>=0.1.3)"]
 name = "requests"
 version = "2.28.2"
 description = "Python HTTP for Humans."
-category = "dev"
 optional = false
 python-versions = ">=3.7, <4"
 files = [
@@ -1175,7 +1115,6 @@ use-chardet-on-py3 = ["chardet (>=3.0.2,<6)"]
 name = "rfc3986"
 version = "1.5.0"
 description = "Validating URI References per RFC 3986"
-category = "dev"
 optional = false
 python-versions = "*"
 files = [
@@ -1193,7 +1132,6 @@ idna2008 = ["idna"]
 name = "setuptools"
 version = "65.7.0"
 description = "Easily download, build, install, upgrade, and uninstall Python packages"
-category = "main"
 optional = false
 python-versions = ">=3.7"
 files = [
@@ -1210,7 +1148,6 @@ testing-integration = ["build[virtualenv]", "filelock (>=3.4.0)", "jaraco.envs (
 name = "six"
 version = "1.16.0"
 description = "Python 2 and 3 compatibility utilities"
-category = "dev"
 optional = false
 python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*"
 files = [
@@ -1222,7 +1159,6 @@ files = [
 name = "sniffio"
 version = "1.3.0"
 description = "Sniff out which async library your code is running under"
-category = "dev"
 optional = false
 python-versions = ">=3.7"
 files = [
@@ -1234,7 +1170,6 @@ files = [
 name = "starlette"
 version = "0.22.0"
 description = "The little ASGI library that shines."
-category = "dev"
 optional = false
 python-versions = ">=3.7"
 files = [
@@ -1253,7 +1188,6 @@ full = ["httpx (>=0.22.0)", "itsdangerous", "jinja2", "python-multipart", "pyyam
 name = "toml"
 version = "0.10.2"
 description = "Python Library for Tom's Obvious, Minimal Language"
-category = "dev"
 optional = false
 python-versions = ">=2.6, !=3.0.*, !=3.1.*, !=3.2.*"
 files = [
@@ -1265,7 +1199,6 @@ files = [
 name = "tomli"
 version = "2.0.1"
 description = "A lil' TOML parser"
-category = "dev"
 optional = false
 python-versions = ">=3.7"
 files = [
@@ -1273,51 +1206,10 @@ files = [
     {file = "tomli-2.0.1.tar.gz", hash = "sha256:de526c12914f0c550d15924c62d72abc48d6fe7364aa87328337a31007fe8a4f"},
 ]
 
-[[package]]
-name = "typed-ast"
-version = "1.4.3"
-description = "a fork of Python 2 and 3 ast modules with type comment support"
-category = "dev"
-optional = false
-python-versions = "*"
-files = [
-    {file = "typed_ast-1.4.3-cp35-cp35m-manylinux1_i686.whl", hash = "sha256:2068531575a125b87a41802130fa7e29f26c09a2833fea68d9a40cf33902eba6"},
-    {file = "typed_ast-1.4.3-cp35-cp35m-manylinux1_x86_64.whl", hash = "sha256:c907f561b1e83e93fad565bac5ba9c22d96a54e7ea0267c708bffe863cbe4075"},
-    {file = "typed_ast-1.4.3-cp35-cp35m-manylinux2014_aarch64.whl", hash = "sha256:1b3ead4a96c9101bef08f9f7d1217c096f31667617b58de957f690c92378b528"},
-    {file = "typed_ast-1.4.3-cp35-cp35m-win32.whl", hash = "sha256:dde816ca9dac1d9c01dd504ea5967821606f02e510438120091b84e852367428"},
-    {file = "typed_ast-1.4.3-cp35-cp35m-win_amd64.whl", hash = "sha256:777a26c84bea6cd934422ac2e3b78863a37017618b6e5c08f92ef69853e765d3"},
-    {file = "typed_ast-1.4.3-cp36-cp36m-macosx_10_9_x86_64.whl", hash = "sha256:f8afcf15cc511ada719a88e013cec87c11aff7b91f019295eb4530f96fe5ef2f"},
-    {file = "typed_ast-1.4.3-cp36-cp36m-manylinux1_i686.whl", hash = "sha256:52b1eb8c83f178ab787f3a4283f68258525f8d70f778a2f6dd54d3b5e5fb4341"},
-    {file = "typed_ast-1.4.3-cp36-cp36m-manylinux1_x86_64.whl", hash = "sha256:01ae5f73431d21eead5015997ab41afa53aa1fbe252f9da060be5dad2c730ace"},
-    {file = "typed_ast-1.4.3-cp36-cp36m-manylinux2014_aarch64.whl", hash = "sha256:c190f0899e9f9f8b6b7863debfb739abcb21a5c054f911ca3596d12b8a4c4c7f"},
-    {file = "typed_ast-1.4.3-cp36-cp36m-win32.whl", hash = "sha256:398e44cd480f4d2b7ee8d98385ca104e35c81525dd98c519acff1b79bdaac363"},
-    {file = "typed_ast-1.4.3-cp36-cp36m-win_amd64.whl", hash = "sha256:bff6ad71c81b3bba8fa35f0f1921fb24ff4476235a6e94a26ada2e54370e6da7"},
-    {file = "typed_ast-1.4.3-cp37-cp37m-macosx_10_9_x86_64.whl", hash = "sha256:0fb71b8c643187d7492c1f8352f2c15b4c4af3f6338f21681d3681b3dc31a266"},
-    {file = "typed_ast-1.4.3-cp37-cp37m-manylinux1_i686.whl", hash = "sha256:760ad187b1041a154f0e4d0f6aae3e40fdb51d6de16e5c99aedadd9246450e9e"},
-    {file = "typed_ast-1.4.3-cp37-cp37m-manylinux1_x86_64.whl", hash = "sha256:5feca99c17af94057417d744607b82dd0a664fd5e4ca98061480fd8b14b18d04"},
-    {file = "typed_ast-1.4.3-cp37-cp37m-manylinux2014_aarch64.whl", hash = "sha256:95431a26309a21874005845c21118c83991c63ea800dd44843e42a916aec5899"},
-    {file = "typed_ast-1.4.3-cp37-cp37m-win32.whl", hash = "sha256:aee0c1256be6c07bd3e1263ff920c325b59849dc95392a05f258bb9b259cf39c"},
-    {file = "typed_ast-1.4.3-cp37-cp37m-win_amd64.whl", hash = "sha256:9ad2c92ec681e02baf81fdfa056fe0d818645efa9af1f1cd5fd6f1bd2bdfd805"},
-    {file = "typed_ast-1.4.3-cp38-cp38-macosx_10_9_x86_64.whl", hash = "sha256:b36b4f3920103a25e1d5d024d155c504080959582b928e91cb608a65c3a49e1a"},
-    {file = "typed_ast-1.4.3-cp38-cp38-manylinux1_i686.whl", hash = "sha256:067a74454df670dcaa4e59349a2e5c81e567d8d65458d480a5b3dfecec08c5ff"},
-    {file = "typed_ast-1.4.3-cp38-cp38-manylinux1_x86_64.whl", hash = "sha256:7538e495704e2ccda9b234b82423a4038f324f3a10c43bc088a1636180f11a41"},
-    {file = "typed_ast-1.4.3-cp38-cp38-manylinux2014_aarch64.whl", hash = "sha256:af3d4a73793725138d6b334d9d247ce7e5f084d96284ed23f22ee626a7b88e39"},
-    {file = "typed_ast-1.4.3-cp38-cp38-win32.whl", hash = "sha256:f2362f3cb0f3172c42938946dbc5b7843c2a28aec307c49100c8b38764eb6927"},
-    {file = "typed_ast-1.4.3-cp38-cp38-win_amd64.whl", hash = "sha256:dd4a21253f42b8d2b48410cb31fe501d32f8b9fbeb1f55063ad102fe9c425e40"},
-    {file = "typed_ast-1.4.3-cp39-cp39-macosx_10_9_x86_64.whl", hash = "sha256:f328adcfebed9f11301eaedfa48e15bdece9b519fb27e6a8c01aa52a17ec31b3"},
-    {file = "typed_ast-1.4.3-cp39-cp39-manylinux1_i686.whl", hash = "sha256:2c726c276d09fc5c414693a2de063f521052d9ea7c240ce553316f70656c84d4"},
-    {file = "typed_ast-1.4.3-cp39-cp39-manylinux1_x86_64.whl", hash = "sha256:cae53c389825d3b46fb37538441f75d6aecc4174f615d048321b716df2757fb0"},
-    {file = "typed_ast-1.4.3-cp39-cp39-manylinux2014_aarch64.whl", hash = "sha256:b9574c6f03f685070d859e75c7f9eeca02d6933273b5e69572e5ff9d5e3931c3"},
-    {file = "typed_ast-1.4.3-cp39-cp39-win32.whl", hash = "sha256:209596a4ec71d990d71d5e0d312ac935d86930e6eecff6ccc7007fe54d703808"},
-    {file = "typed_ast-1.4.3-cp39-cp39-win_amd64.whl", hash = "sha256:9c6d1a54552b5330bc657b7ef0eae25d00ba7ffe85d9ea8ae6540d2197a3788c"},
-    {file = "typed_ast-1.4.3.tar.gz", hash = "sha256:fb1bbeac803adea29cedd70781399c99138358c26d05fcbd23c13016b7f5ec65"},
-]
-
 [[package]]
 name = "types-redis"
 version = "3.5.18"
 description = "Typing stubs for redis"
-category = "dev"
 optional = false
 python-versions = "*"
 files = [
@@ -1327,21 +1219,19 @@ files = [
 
 [[package]]
 name = "typing-extensions"
-version = "4.5.0"
-description = "Backported and Experimental Type Hints for Python 3.7+"
-category = "main"
+version = "4.12.2"
+description = "Backported and Experimental Type Hints for Python 3.8+"
 optional = false
-python-versions = ">=3.7"
+python-versions = ">=3.8"
 files = [
-    {file = "typing_extensions-4.5.0-py3-none-any.whl", hash = "sha256:fb33085c39dd998ac16d1431ebc293a8b3eedd00fd4a32de0ff79002c19511b4"},
-    {file = "typing_extensions-4.5.0.tar.gz", hash = "sha256:5cb5f4a79139d699607b3ef622a1dedafa84e115ab0024e0d9c044a9479ca7cb"},
+    {file = "typing_extensions-4.12.2-py3-none-any.whl", hash = "sha256:04e5ca0351e0f3f85c6853954072df659d0d13fac324d0072316b67d7794700d"},
+    {file = "typing_extensions-4.12.2.tar.gz", hash = "sha256:1a7ead55c7e559dd4dee8856e3a88b41225abfe1ce8df57b7c13915fe121ffb8"},
 ]
 
 [[package]]
 name = "urllib3"
 version = "1.26.15"
 description = "HTTP library with thread-safe connection pooling, file post, and more."
-category = "dev"
 optional = false
 python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*, !=3.4.*, !=3.5.*"
 files = [
@@ -1358,7 +1248,6 @@ socks = ["PySocks (>=1.5.6,!=1.5.7,<2.0)"]
 name = "watchdog"
 version = "3.0.0"
 description = "Filesystem events monitoring"
-category = "dev"
 optional = false
 python-versions = ">=3.7"
 files = [
@@ -1398,7 +1287,6 @@ watchmedo = ["PyYAML (>=3.10)"]
 name = "wrapt"
 version = "1.15.0"
 description = "Module for decorators, wrappers and monkey patching."
-category = "main"
 optional = false
 python-versions = "!=3.0.*,!=3.1.*,!=3.2.*,!=3.3.*,!=3.4.*,>=2.7"
 files = [
@@ -1483,7 +1371,6 @@ files = [
 name = "zipp"
 version = "3.15.0"
 description = "Backport of pathlib-compatible object wrapper for zip files"
-category = "main"
 optional = false
 python-versions = ">=3.7"
 files = [
@@ -1500,5 +1387,5 @@ redis = ["redis"]
 
 [metadata]
 lock-version = "2.0"
-python-versions = ">=3.7,<4.0"
-content-hash = "b0fbb75051b47ba71537e15c61e7bbbccd8edf91d806dc2ce83be350ed711297"
+python-versions = ">=3.8,<4.0"
+content-hash = "57cf1f5e88f1b2914dcdcdc44ab2b6d89cd2c18fd64b7ed4eded57b3e244ef8f"
diff --git a/pyproject.toml b/pyproject.toml
index c242b7d..2774997 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -14,13 +14,14 @@ documentation = "https://slowapi.readthedocs.io/en/latest/"
 include = ["slowapi/py.typed"]
 
 [tool.poetry.dependencies]
-python = ">=3.7,<4.0"
+python = ">=3.8,<4.0"
 limits = ">=2.3"
 redis = {version = "^3.4.1", optional = true}
+typing-extensions = ">4.10"
 
 [tool.poetry.dev-dependencies]
 isort = "^4.3.21"
-mypy = "^0.910"
+mypy = "^1.10.0"
 black = "^23.0.0"
 fastapi = "^0.89.0"
 lxml = "^4.9.1"
diff --git a/slowapi/extension.py b/slowapi/extension.py
index 6cbb681..14b2dc6 100644
--- a/slowapi/extension.py
+++ b/slowapi/extension.py
@@ -1,6 +1,7 @@
 """
 The starlette extension to rate-limit requests
 """
+
 import asyncio
 import functools
 import inspect
@@ -10,36 +11,34 @@
 import time
 from datetime import datetime
 from email.utils import formatdate, parsedate_to_datetime
-from functools import wraps
-from typing import (
-    Any,
-    Callable,
-    Dict,
-    List,
-    Optional,
-    Set,
-    Tuple,
-    TypeVar,
-    Union,
-)
+from typing import Any, Callable, Dict, List, Optional, Set, Tuple, TypeVar
 
-from limits import RateLimitItem  # type: ignore
-from limits.errors import ConfigurationError  # type: ignore
-from limits.storage import MemoryStorage, storage_from_string  # type: ignore
-from limits.strategies import STRATEGIES, RateLimiter  # type: ignore
+from limits import RateLimitItem
+from limits.errors import ConfigurationError
+from limits.storage import MemoryStorage, storage_from_string
+from limits.strategies import STRATEGIES, RateLimiter
+from starlette.applications import Starlette
 from starlette.config import Config
 from starlette.datastructures import MutableHeaders
 from starlette.requests import Request
 from starlette.responses import JSONResponse, Response
-from typing_extensions import Literal
+from typing_extensions import Literal, ParamSpec
 
 from .errors import RateLimitExceeded
+from .types import (
+    Cost,
+    ErrorMessage,
+    ExemptWhen,
+    KeyFn,
+    LimitProvider,
+    Scope,
+    is_request_fn,
+)
 from .wrappers import Limit, LimitGroup
 
 # used to annotate get_app_config method
 T = TypeVar("T")
-# Define an alias for the most commonly used type
-StrOrCallableStr = Union[str, Callable[..., str]]
+P = ParamSpec("P")
 
 
 class C:
@@ -129,16 +128,16 @@ class Limiter:
     def __init__(
         self,
         # app: Starlette = None,
-        key_func: Callable[..., str],
-        default_limits: List[StrOrCallableStr] = [],
-        application_limits: List[StrOrCallableStr] = [],
+        key_func: KeyFn,
+        default_limits: List[LimitProvider] = [],
+        application_limits: List[LimitProvider] = [],
         headers_enabled: bool = False,
         strategy: Optional[str] = None,
         storage_uri: Optional[str] = None,
         storage_options: Dict[str, str] = {},
         auto_check: bool = True,
         swallow_errors: bool = False,
-        in_memory_fallback: List[StrOrCallableStr] = [],
+        in_memory_fallback: List[LimitProvider] = [],
         in_memory_fallback_enabled: bool = False,
         retry_after: Optional[str] = None,
         key_prefix: str = "",
@@ -271,7 +270,7 @@ def emit(*_):
             C.HEADER_RETRY_AFTER_VALUE
         )
         self._key_prefix = self._key_prefix or self.get_app_config(C.KEY_PREFIX)
-        app_limits: Optional[StrOrCallableStr] = self.get_app_config(
+        app_limits: Optional[LimitProvider] = self.get_app_config(
             C.APPLICATION_LIMITS, None
         )
         if not self._application_limits and app_limits:
@@ -289,7 +288,7 @@ def emit(*_):
                 )
             ]
 
-        conf_limits: Optional[StrOrCallableStr] = self.get_app_config(
+        conf_limits: Optional[LimitProvider] = self.get_app_config(
             C.DEFAULT_LIMITS, None
         )
         if not self._default_limits and conf_limits:
@@ -299,7 +298,7 @@ def emit(*_):
                 )
             ]
         fallback_enabled = self.get_app_config(C.IN_MEMORY_FALLBACK_ENABLED, False)
-        fallback_limits: Optional[StrOrCallableStr] = self.get_app_config(
+        fallback_limits: Optional[LimitProvider] = self.get_app_config(
             C.IN_MEMORY_FALLBACK, None
         )
         if not self._in_memory_fallback and fallback_limits:
@@ -325,14 +324,14 @@ def emit(*_):
             self._fallback_storage = MemoryStorage()
             self._fallback_limiter = STRATEGIES[strategy](self._fallback_storage)
 
-    def slowapi_startup(self) -> None:
+    def slowapi_startup(self, app: Starlette) -> None:
         """
         Starlette startup event handler that links the app with the Limiter instance.
         """
         app.state.limiter = self  # type: ignore
         app.add_exception_handler(RateLimitExceeded, _rate_limit_exceeded_handler)  # type: ignore
 
-    def get_app_config(self, key: str, default_value: T = None) -> T:
+    def get_app_config(self, key: str, default_value: Optional[T] = None) -> T:
         """
         Place holder until we find a better way to load config from app
         """
@@ -485,7 +484,7 @@ def __evaluate_limits(
         failed_limit = None
         limit_for_header = None
         for lim in limits:
-            limit_scope = lim.scope or endpoint
+            limit_scope = lim.scope(request) or endpoint
             if lim.is_exempt:
                 continue
             if lim.methods is not None and request.method.lower() not in lim.methods:
@@ -493,7 +492,7 @@ def __evaluate_limits(
             if lim.per_method:
                 limit_scope += ":%s" % request.method
 
-            if "request" in inspect.signature(lim.key_func).parameters.keys():
+            if is_request_fn(lim.key_func):
                 limit_key = lim.key_func(request)
             else:
                 limit_key = lim.key_func()
@@ -586,7 +585,7 @@ def _check_request_limit(
             if endpoint_func_name in self._dynamic_route_limits:
                 for lim in self._dynamic_route_limits[endpoint_func_name]:
                     try:
-                        dynamic_limits.extend(list(lim.with_request(request)))
+                        dynamic_limits.extend(lim.resolve(request))
                     except ValueError as e:
                         self.logger.error(
                             "failed to load ratelimit for view function %s (%s)",
@@ -605,11 +604,19 @@ def _check_request_limit(
                         self._storage_dead = False
                         self.__check_backend_count = 0
                     else:
-                        all_limits = list(itertools.chain(*self._in_memory_fallback))
+                        all_limits = list(
+                            itertools.chain(
+                                *(lim.resolve() for lim in self._in_memory_fallback)
+                            )
+                        )
             if not all_limits:
                 route_limits: List[Limit] = limits + dynamic_limits
                 all_limits = (
-                    list(itertools.chain(*self._application_limits))
+                    list(
+                        itertools.chain(
+                            *(lim.resolve() for lim in self._application_limits)
+                        )
+                    )
                     if in_middleware
                     else []
                 )
@@ -625,7 +632,11 @@ def _check_request_limit(
                     )
                     or combined_defaults
                 ):
-                    all_limits += list(itertools.chain(*self._default_limits))
+                    all_limits += list(
+                        itertools.chain(
+                            *(lim.resolve() for lim in self._default_limits)
+                        )
+                    )
             # actually check the limits, so far we've only computed the list of limits to check
             self.__evaluate_limits(request, _endpoint_key, all_limits)
         except Exception as e:  # no qa
@@ -646,20 +657,20 @@ def _check_request_limit(
 
     def __limit_decorator(
         self,
-        limit_value: StrOrCallableStr,
-        key_func: Optional[Callable[..., str]] = None,
+        limit_value: LimitProvider,
+        key_func: Optional[KeyFn] = None,
         shared: bool = False,
-        scope: Optional[StrOrCallableStr] = None,
+        scope: Optional[Scope] = None,
         per_method: bool = False,
         methods: Optional[List[str]] = None,
-        error_message: Optional[str] = None,
-        exempt_when: Optional[Callable[..., bool]] = None,
-        cost: Union[int, Callable[..., int]] = 1,
+        error_message: Optional[ErrorMessage] = None,
+        exempt_when: Optional[ExemptWhen] = None,
+        cost: Cost = 1,
         override_defaults: bool = True,
-    ) -> Callable[..., Any]:
+    ) -> Callable[[Callable[P, T]], Callable[P, T]]:
         _scope = scope if shared else None
 
-        def decorator(func: Callable[..., Response]):
+        def decorator(func: Callable[P, T]) -> Callable[P, T]:
             keyfunc = key_func or self._key_func
             name = f"{func.__module__}.{func.__name__}"
             dynamic_limit = None
@@ -689,7 +700,7 @@ def decorator(func: Callable[..., Response]):
                             exempt_when,
                             cost,
                             override_defaults,
-                        )
+                        ).resolve()
                     )
                 except ValueError as e:
                     self.logger.error(
@@ -717,7 +728,7 @@ def decorator(func: Callable[..., Response]):
             if asyncio.iscoroutinefunction(func):
                 # Handle async request/response functions.
                 @functools.wraps(func)
-                async def async_wrapper(*args: Any, **kwargs: Any) -> Response:
+                async def async_wrapper(*args: P.args, **kwargs: P.kwargs) -> T:
                     # get the request object from the decorated endpoint function
                     if self.enabled:
                         request = kwargs.get("request", args[idx] if args else None)
@@ -731,12 +742,13 @@ async def async_wrapper(*args: Any, **kwargs: Any) -> Response:
                         ):
                             self._check_request_limit(request, func, False)
                             request.state._rate_limiting_complete = True
-                    response = await func(*args, **kwargs)  # type: ignore
+                    response: T = await func(*args, **kwargs)
                     if self.enabled:
                         if not isinstance(response, Response):
                             # get the response object from the decorated endpoint function
                             self._inject_headers(
-                                kwargs.get("response"), request.state.view_rate_limit  # type: ignore
+                                kwargs.get("response"),  # type: ignore
+                                request.state.view_rate_limit,
                             )
                         else:
                             self._inject_headers(
@@ -744,12 +756,12 @@ async def async_wrapper(*args: Any, **kwargs: Any) -> Response:
                             )
                     return response
 
-                return async_wrapper
+                return async_wrapper  # type: ignore
 
             else:
                 # Handle sync request/response functions.
                 @functools.wraps(func)
-                def sync_wrapper(*args: Any, **kwargs: Any) -> Response:
+                def sync_wrapper(*args: P.args, **kwargs: P.kwargs) -> T:
                     # get the request object from the decorated endpoint function
                     if self.enabled:
                         request = kwargs.get("request", args[idx] if args else None)
@@ -768,7 +780,8 @@ def sync_wrapper(*args: Any, **kwargs: Any) -> Response:
                         if not isinstance(response, Response):
                             # get the response object from the decorated endpoint function
                             self._inject_headers(
-                                kwargs.get("response"), request.state.view_rate_limit  # type: ignore
+                                kwargs.get("response"),  # type: ignore
+                                request.state.view_rate_limit,
                             )
                         else:
                             self._inject_headers(
@@ -782,15 +795,15 @@ def sync_wrapper(*args: Any, **kwargs: Any) -> Response:
 
     def limit(
         self,
-        limit_value: StrOrCallableStr,
-        key_func: Optional[Callable[..., str]] = None,
+        limit_value: LimitProvider,
+        key_func: Optional[KeyFn] = None,
         per_method: bool = False,
         methods: Optional[List[str]] = None,
-        error_message: Optional[str] = None,
-        exempt_when: Optional[Callable[..., bool]] = None,
-        cost: Union[int, Callable[..., int]] = 1,
+        error_message: Optional[ErrorMessage] = None,
+        exempt_when: Optional[ExemptWhen] = None,
+        cost: Cost = 1,
         override_defaults: bool = True,
-    ) -> Callable:
+    ) -> Callable[[Callable[P, T]], Callable[P, T]]:
         """
         Decorator to be used for rate limiting individual routes.
 
@@ -822,14 +835,14 @@ def limit(
 
     def shared_limit(
         self,
-        limit_value: StrOrCallableStr,
-        scope: StrOrCallableStr,
-        key_func: Optional[Callable[..., str]] = None,
-        error_message: Optional[str] = None,
-        exempt_when: Optional[Callable[..., bool]] = None,
-        cost: Union[int, Callable[..., int]] = 1,
+        limit_value: LimitProvider,
+        scope: Scope,
+        key_func: Optional[KeyFn] = None,
+        error_message: Optional[ErrorMessage] = None,
+        exempt_when: Optional[ExemptWhen] = None,
+        cost: Cost = 1,
         override_defaults: bool = True,
-    ) -> Callable:
+    ) -> Callable[[Callable[P, T]], Callable[P, T]]:
         """
         Decorator to be applied to multiple routes sharing the same rate limit.
 
@@ -861,25 +874,11 @@ def shared_limit(
             override_defaults=override_defaults,
         )
 
-    def exempt(self, obj):
+    def exempt(self, obj: Callable[P, T]) -> Callable[P, T]:
         """
         Decorator to mark a view as exempt from rate limits.
         """
         name = "%s.%s" % (obj.__module__, obj.__name__)
 
         self._exempt_routes.add(name)
-
-        if asyncio.iscoroutinefunction(obj):
-
-            @wraps(obj)
-            async def __async_inner(*a, **k):
-                return await obj(*a, **k)
-
-            return __async_inner
-        else:
-
-            @wraps(obj)
-            def __inner(*a, **k):
-                return obj(*a, **k)
-
-            return __inner
+        return obj
diff --git a/slowapi/types.py b/slowapi/types.py
new file mode 100644
index 0000000..65b1a2f
--- /dev/null
+++ b/slowapi/types.py
@@ -0,0 +1,40 @@
+from __future__ import annotations
+
+import inspect
+from typing import Any, Callable, TypeVar, Union
+
+from starlette.requests import Request
+from typing_extensions import Protocol, TypeIs
+
+T = TypeVar("T", covariant=True)
+
+
+class RequestFn(Protocol[T]):
+    def __call__(self, request: Request) -> T: ...
+
+
+PlainFn = Callable[[], T]
+ValueOrFn = Union[T, PlainFn[T]]
+MaybeRequestFn = Union[PlainFn[T], RequestFn[T]]
+ValueOrRequestFn = Union[T, RequestFn[T]]
+
+KeyFn = MaybeRequestFn[str]
+Scope = ValueOrRequestFn[str]
+ErrorMessage = ValueOrFn[str]
+ExemptWhen = PlainFn[bool]
+Cost = ValueOrRequestFn[int]
+
+
+class LimitProviderFn(Protocol):
+    def __call__(self, key: str) -> str: ...
+
+
+LimitProvider = Union[str, PlainFn[str], LimitProviderFn]
+
+
+def is_limit_provider_fn(func: Any) -> TypeIs[LimitProviderFn]:
+    return "key" in inspect.signature(func).parameters.keys()
+
+
+def is_request_fn(func: Any) -> TypeIs[RequestFn]:
+    return "request" in inspect.signature(func).parameters.keys()
diff --git a/slowapi/wrappers.py b/slowapi/wrappers.py
index a1741c5..8c21553 100644
--- a/slowapi/wrappers.py
+++ b/slowapi/wrappers.py
@@ -1,7 +1,18 @@
-import inspect
-from typing import Callable, Iterator, List, Optional, Union
+from typing import Iterator, List, Optional
 
-from limits import RateLimitItem, parse_many  # type: ignore
+from limits import RateLimitItem, parse_many
+from starlette.requests import Request
+
+from .types import (
+    Cost,
+    ErrorMessage,
+    ExemptWhen,
+    KeyFn,
+    LimitProvider,
+    Scope,
+    is_limit_provider_fn,
+    is_request_fn,
+)
 
 
 class Limit(object):
@@ -12,13 +23,13 @@ class Limit(object):
     def __init__(
         self,
         limit: RateLimitItem,
-        key_func: Callable[..., str],
-        scope: Optional[Union[str, Callable[..., str]]],
+        key_func: KeyFn,
+        scope: Optional[Scope],
         per_method: bool,
         methods: Optional[List[str]],
-        error_message: Optional[Union[str, Callable[..., str]]],
-        exempt_when: Optional[Callable[..., bool]],
-        cost: Union[int, Callable[..., int]],
+        error_message: Optional[ErrorMessage],
+        exempt_when: Optional[ExemptWhen],
+        cost: Cost,
         override_defaults: bool,
     ) -> None:
         self.limit = limit
@@ -39,18 +50,11 @@ def is_exempt(self) -> bool:
         """
         return self.exempt_when() if self.exempt_when is not None else False
 
-    @property
-    def scope(self) -> str:
-        # flack.request.endpoint is the name of the function for the endpoint
-        # FIXME: how to get the request here?
+    def scope(self, request: Request) -> str:
         if self.__scope is None:
             return ""
         else:
-            return (
-                self.__scope(request.endpoint)  # type: ignore
-                if callable(self.__scope)
-                else self.__scope
-            )
+            return self.__scope(request) if callable(self.__scope) else self.__scope
 
 
 class LimitGroup(object):
@@ -60,14 +64,14 @@ class LimitGroup(object):
 
     def __init__(
         self,
-        limit_provider: Union[str, Callable[..., str]],
-        key_function: Callable[..., str],
-        scope: Optional[Union[str, Callable[..., str]]],
+        limit_provider: LimitProvider,
+        key_function: KeyFn,
+        scope: Optional[Scope],
         per_method: bool,
         methods: Optional[List[str]],
-        error_message: Optional[Union[str, Callable[..., str]]],
-        exempt_when: Optional[Callable[..., bool]],
-        cost: Union[int, Callable[..., int]],
+        error_message: Optional[ErrorMessage],
+        exempt_when: Optional[ExemptWhen],
+        cost: Cost,
         override_defaults: bool,
     ):
         self.__limit_provider = limit_provider
@@ -79,17 +83,16 @@ def __init__(
         self.exempt_when = exempt_when
         self.cost = cost
         self.override_defaults = override_defaults
-        self.request = None
 
-    def __iter__(self) -> Iterator[Limit]:
+    def resolve(self, request: Optional[Request] = None) -> Iterator[Limit]:
         if callable(self.__limit_provider):
-            if "key" in inspect.signature(self.__limit_provider).parameters.keys():
-                assert (
-                    "request" in inspect.signature(self.key_function).parameters.keys()
-                ), f"Limit provider function {self.key_function.__name__} needs a `request` argument"
-                if self.request is None:
+            if is_limit_provider_fn(self.__limit_provider):
+                assert is_request_fn(
+                    self.key_function
+                ), f"Limit provider function {getattr(self.key_function, '__name__', str(self.key_function))} needs a `request` argument"
+                if request is None:
                     raise Exception("`request` object can't be None")
-                limit_raw = self.__limit_provider(self.key_function(self.request))
+                limit_raw = self.__limit_provider(self.key_function(request))
             else:
                 limit_raw = self.__limit_provider()
         else:
@@ -107,7 +110,3 @@ def __iter__(self) -> Iterator[Limit]:
                 self.cost,
                 self.override_defaults,
             )
-
-    def with_request(self, request):
-        self.request = request
-        return self