def describe_identity(IdentityId=None):
    """
    Returns metadata related to the given identity, including when the identity was created and any associated linked logins.
    You must use AWS Developer credentials to call this API.
    See also: AWS API Documentation
    
    
    :example: response = client.describe_identity(
        IdentityId='string'
    )
    
    
    :type IdentityId: string
    :param IdentityId: [REQUIRED]
            A unique identifier in the format REGION:GUID.
            

    :rtype: dict
    :return: {
        'IdentityId': 'string',
        'Logins': [
            'string',
        ],
        'CreationDate': datetime(2015, 1, 1),
        'LastModifiedDate': datetime(2015, 1, 1)
    }
    
    
    """
    pass
