# Validate new key if not self.key_validator.validate(new_key): return "Invalid new registration key"
# Update key in database try: self.user_database.update_registration_key(username, new_key) return "Registration key updated successfully" except Exception as e: return f"Failed to update registration key: {e}" remouse registration key upd
class RegistrationKeyUpdater: def __init__(self, user_database, key_validator): self.user_database = user_database self.key_validator = key_validator # Validate new key if not self