def register():
validate_int = CheckInstance(int)
validate_bool = CheckInstance(bool)
validate_float = CheckInstance(float)
validate_date = CheckInstance(datetime)
Registry.register_validator("string", validate_string)
Registry.register_validator("int", validate_int)
Registry.register_validator("bool", validate_bool)
Registry.register_validator("float", validate_float)
Registry.register_validator("date", validate_date)
Registry.register_validator("datetime", validate_date)
Registry.register_validator("file", validate_file)
