def update_lag(lagId=None, lagName=None, minimumLinks=None):
    """
    Updates the attributes of a link aggregation group (LAG).
    You can update the following attributes:
    When you create a LAG, the default value for the minimum number of operational connections is zero (0). If you update this value, and the number of operational connections falls below the specified value, the LAG will automatically go down to avoid overutilization of the remaining connections. Adjusting this value should be done with care as it could force the LAG down if the value is set higher than the current number of operational connections.
    See also: AWS API Documentation
    
    
    :example: response = client.update_lag(
        lagId='string',
        lagName='string',
        minimumLinks=123
    )
    
    
    :type lagId: string
    :param lagId: [REQUIRED]
            The ID of the LAG to update.
            Example: dxlag-abc123
            Default: None
            

    :type lagName: string
    :param lagName: The name for the LAG.
            Example: '3x10G LAG to AWS '
            Default: None
            

    :type minimumLinks: integer
    :param minimumLinks: The minimum number of physical connections that must be operational for the LAG itself to be operational.
            Default: None
            

    :rtype: dict
    :return: {
        'connectionsBandwidth': 'string',
        'numberOfConnections': 123,
        'lagId': 'string',
        'ownerAccount': 'string',
        'lagName': 'string',
        'lagState': 'requested'|'pending'|'available'|'down'|'deleting'|'deleted',
        'location': 'string',
        'region': 'string',
        'minimumLinks': 123,
        'awsDevice': 'string',
        'connections': [
            {
                'ownerAccount': 'string',
                'connectionId': 'string',
                'connectionName': 'string',
                'connectionState': 'ordering'|'requested'|'pending'|'available'|'down'|'deleting'|'deleted'|'rejected',
                'region': 'string',
                'location': 'string',
                'bandwidth': 'string',
                'vlan': 123,
                'partnerName': 'string',
                'loaIssueTime': datetime(2015, 1, 1),
                'lagId': 'string',
                'awsDevice': 'string'
            },
        ],
        'allowsHostedConnections': True|False
    }
    
    
    :returns: 
    lagId (string) -- [REQUIRED]
    The ID of the LAG to update.
    Example: dxlag-abc123
    Default: None
    
    lagName (string) -- The name for the LAG.
    Example: "3x10G LAG to AWS "
    Default: None
    
    minimumLinks (integer) -- The minimum number of physical connections that must be operational for the LAG itself to be operational.
    Default: None
    
    
    """
    pass
