def describe_user_profile(userArn=None):
    """
    Describes a user in AWS CodeStar and the user attributes across all projects.
    See also: AWS API Documentation
    
    
    :example: response = client.describe_user_profile(
        userArn='string'
    )
    
    
    :type userArn: string
    :param userArn: [REQUIRED]
            The Amazon Resource Name (ARN) of the user.
            

    :rtype: dict
    :return: {
        'userArn': 'string',
        'displayName': 'string',
        'emailAddress': 'string',
        'sshPublicKey': 'string',
        'createdTimestamp': datetime(2015, 1, 1),
        'lastModifiedTimestamp': datetime(2015, 1, 1)
    }
    
    
    """
    pass
