added testing deps

pyproject.toml

@@ -18,3 +18,11 @@ classifiers=[
     "License :: OSI Approved :: GNU Lesser General Public License v3 (LGPLv3)",
     "Operating System :: OS Independent",
 ]
+
+
+[project.optional-dependencies]
+testing = [
+    "pytest>=8.0",
+    "pytest-cov>=6.0",
+    "requests>=2.0"
+]
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