def put_bot_alias(name=None, description=None, botVersion=None, botName=
    None, checksum=None):
    """
    Creates an alias for the specified version of the bot or replaces an alias for the specified bot. To change the version of the bot that the alias points to, replace the alias. For more information about aliases, see  versioning-aliases .
    This operation requires permissions for the lex:PutBotAlias action.
    See also: AWS API Documentation
    
    
    :example: response = client.put_bot_alias(
        name='string',
        description='string',
        botVersion='string',
        botName='string',
        checksum='string'
    )
    
    
    :type name: string
    :param name: [REQUIRED]
            The name of the alias. The name is not case sensitive.
            

    :type description: string
    :param description: A description of the alias.

    :type botVersion: string
    :param botVersion: [REQUIRED]
            The version of the bot.
            

    :type botName: string
    :param botName: [REQUIRED]
            The name of the bot.
            

    :type checksum: string
    :param checksum: Identifies a specific revision of the $LATEST version.
            When you create a new bot alias, leave the checksum field blank. If you specify a checksum you get a BadRequestException exception.
            When you want to update a bot alias, set the checksum field to the checksum of the most recent revision of the $LATEST version. If you don't specify the checksum field, or if the checksum does not match the $LATEST version, you get a PreconditionFailedException exception.
            

    :rtype: dict
    :return: {
        'name': 'string',
        'description': 'string',
        'botVersion': 'string',
        'botName': 'string',
        'lastUpdatedDate': datetime(2015, 1, 1),
        'createdDate': datetime(2015, 1, 1),
        'checksum': 'string'
    }
    
    
    """
    pass
