def check_default_stream_group_name(group_name: str) -> None:
    if (group_name.strip() == ''):
        raise JsonableError(_("Invalid default stream group name '{}'").format(group_name))
    if (len(group_name) > DefaultStreamGroup.MAX_NAME_LENGTH):
        raise JsonableError(_('Default stream group name too long (limit: {} characters)').format(DefaultStreamGroup.MAX_NAME_LENGTH))
    for i in group_name:
        if (ord(i) == 0):
            raise JsonableError(_("Default stream group name '{}' contains NULL (0x00) characters.").format(group_name))
def check_default_stream_group_name(group_name: str) -> None:
    if (group_name.strip() == ):
        raise JsonableError(_("Invalid default stream group name '{}'").format(group_name))
    if (len(group_name) > DefaultStreamGroup.MAX_NAME_LENGTH):
        raise JsonableError(_('Default stream group name too long (limit: {} characters)').format(DefaultStreamGroup.MAX_NAME_LENGTH))
    for i in group_name:
        if (ord(i) == 0):
            raise JsonableError(_("Default stream group name '{}' contains NULL (0x00) characters.").format(group_name))