def get_argument_definition(self, name: str) -> Optional[StrawberryArgument]:
        """Get the StrawberryArgument definition for the current field by name."""
        try:
            return next(arg for arg in self._field.arguments if arg.python_name == name)
        except StopIteration:
            return None
Get the StrawberryArgument definition for the current field by name.
strawberry/types/info.py