def get_account_summary():
    """
    Retrieves information about IAM entity usage and IAM quotas in the AWS account.
    For information about limitations on IAM entities, see Limitations on IAM Entities in the IAM User Guide .
    See also: AWS API Documentation
    
    Examples
    The following command returns information about the IAM entity quotas and usage in the current AWS account.
    Expected Output:
    
    :example: response = client.get_account_summary()
    
    
    :rtype: dict
    :return: {
        'SummaryMap': {
            'string': 123
        }
    }
    
    
    """
    pass
