chore: initial commit

arguments.py

@@ -0,0 +1,29 @@
+import argparse
+import contextlib
+import io
+
+
+class ArgumentParser:
+    def __init__(self, command, description):
+        self.parser = argparse.ArgumentParser(
+            command, description=description, exit_on_error=False
+        )
+
+    def print_help(self):
+        help_buffer = io.StringIO()
+        with contextlib.redirect_stdout(help_buffer):
+            self.parser.print_help()
+        return help_buffer.getvalue().replace(" and exit", "")
+
+    def add_argument(self, *args, **kwargs):
+        self.parser.add_argument(*args, **kwargs)
+
+    async def parse_args(self, message, tokens) -> argparse.Namespace | None:
+        try:
+            with contextlib.redirect_stdout(io.StringIO()):
+                args = self.parser.parse_args(tokens[1:])
+            return args
+        except SystemExit:
+            await message.reply(f"```\n{self.print_help()}```", mention_author=False)
+        except Exception as e:
+            await message.reply(f"`{e}`", mention_author=False)