Add typing-extensions dependency

poetry.lock

@@ -536,6 +536,17 @@ files = [
     {file = "tomli-2.0.1.tar.gz", hash = "sha256:de526c12914f0c550d15924c62d72abc48d6fe7364aa87328337a31007fe8a4f"},
 ]
 
+[[package]]
+name = "typing-extensions"
+version = "4.12.2"
+description = "Backported and Experimental Type Hints for Python 3.8+"
+optional = false
+python-versions = ">=3.8"
+files = [
+    {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 = "virtualenv"
 version = "20.26.3"
@@ -559,4 +570,4 @@ test = ["covdefaults (>=2.3)", "coverage (>=7.2.7)", "coverage-enable-subprocess
 [metadata]
 lock-version = "2.0"
 python-versions = "^3.11"
-content-hash = "c7e77528e9eca8213b1d2a0d7d353b7f47900832569b2396f9026300939dac14"
+content-hash = "334a7105baa770bfd69d0391602995e317ccc0faa3d34539acbf7e9aa5355fee"

pyproject.toml

@@ -9,6 +9,7 @@ packages = [{ include = "src" }]
 
 [tool.poetry.dependencies]
 python = "^3.11"
+typing-extensions = "^4.12.2"
 
 [tool.poetry.group.dev.dependencies]
 poethepoet = "^0.25.0"