def METHOD_NAME(self, keys):
    """
    Deletes a list of keys.
    :param keys: The list of keys to delete.
    """
    answer = input("Do you want to delete these keys (y/n)? ")
    if answer.lower() == 'y':
        window = 7
        for key in keys:
            try:
                self.kms_client.schedule_key_deletion(
                    KeyId=key['KeyId'], PendingWindowInDays=window)
            except ClientError as err:
                logging.error(
                    "Couldn't delete key %s. Here's why: %s",
                    key['KeyId'], err.response['Error']['Message'])
            else:
                print(f"Key {key['KeyId']} scheduled for deletion in {window} days.")