def list_branches(repositoryName=None, nextToken=None):
    """
    Gets information about one or more branches in a repository.
    See also: AWS API Documentation
    
    
    :example: response = client.list_branches(
        repositoryName='string',
        nextToken='string'
    )
    
    
    :type repositoryName: string
    :param repositoryName: [REQUIRED]
            The name of the repository that contains the branches.
            

    :type nextToken: string
    :param nextToken: An enumeration token that allows the operation to batch the results.

    :rtype: dict
    :return: {
        'branches': [
            'string',
        ],
        'nextToken': 'string'
    }
    
    
    :returns: 
    (string) --
    
    """
    pass
