clan-cli: Print function name to raise for unsupported types by API.register

pkgs/clan-cli/api.py

@@ -23,12 +23,21 @@ def import_all_modules_from_package(pkg: ModuleType) -> None:
         importlib.import_module(module_name)
 
 
-def main() -> None:
+def load_in_all_api_functions() -> None:
+    """
+    For the global API object, to have all functions available.
+    We have to make sure python loads every wrapped function at least once.
+    This is done by importing all modules from the clan_lib and clan_cli packages.
+    """
     import clan_cli
     import clan_lib
 
-    import_all_modules_from_package(clan_cli)
     import_all_modules_from_package(clan_lib)
+    import_all_modules_from_package(clan_cli)
+
+
+def main() -> None:
+    load_in_all_api_functions()
 
     from clan_lib.api import API
 

pkgs/clan-cli/clan_lib/api/__init__.py

@@ -12,6 +12,8 @@ from typing import (
     get_type_hints,
 )
 
+from clan_lib.api.util import JSchemaTypeError
+
 log = logging.getLogger(__name__)
 
 from .serde import dataclass_to_dict, from_dict, sanitize_string
@@ -217,12 +219,16 @@ API.register(open_file)
         for name, func in self._registry.items():
             hints = get_type_hints(func)
 
-            serialized_hints = {
-                key: type_to_dict(
-                    value, scope=name + " argument" if key != "return" else "return"
-                )
-                for key, value in hints.items()
-            }
+            try:
+                serialized_hints = {
+                    key: type_to_dict(
+                        value, scope=name + " argument" if key != "return" else "return"
+                    )
+                    for key, value in hints.items()
+                }
+            except JSchemaTypeError as e:
+                msg = f"Error serializing type hints for function '{name}': {e}"
+                raise JSchemaTypeError(msg) from e
 
             return_type = serialized_hints.pop("return")