def describe_images(registryId=None, repositoryName=None, imageIds=None,
    nextToken=None, maxResults=None, filter=None):
    """
    Returns metadata about the images in a repository, including image size, image tags, and creation date.
    See also: AWS API Documentation
    
    
    :example: response = client.describe_images(
        registryId='string',
        repositoryName='string',
        imageIds=[
            {
                'imageDigest': 'string',
                'imageTag': 'string'
            },
        ],
        nextToken='string',
        maxResults=123,
        filter={
            'tagStatus': 'TAGGED'|'UNTAGGED'
        }
    )
    
    
    :type registryId: string
    :param registryId: The AWS account ID associated with the registry that contains the repository in which to describe images. If you do not specify a registry, the default registry is assumed.

    :type repositoryName: string
    :param repositoryName: [REQUIRED]
            A list of repositories to describe. If this parameter is omitted, then all repositories in a registry are described.
            

    :type imageIds: list
    :param imageIds: The list of image IDs for the requested repository.
            (dict) --An object with identifying information for an Amazon ECR image.
            imageDigest (string) --The sha256 digest of the image manifest.
            imageTag (string) --The tag used for the image.
            
            

    :type nextToken: string
    :param nextToken: The nextToken value returned from a previous paginated DescribeImages request where maxResults was used and the results exceeded the value of that parameter. Pagination continues from the end of the previous results that returned the nextToken value. This value is null when there are no more results to return.

    :type maxResults: integer
    :param maxResults: The maximum number of repository results returned by DescribeImages in paginated output. When this parameter is used, DescribeImages only returns maxResults results in a single page along with a nextToken response element. The remaining results of the initial request can be seen by sending another DescribeImages request with the returned nextToken value. This value can be between 1 and 100. If this parameter is not used, then DescribeImages returns up to 100 results and a nextToken value, if applicable.

    :type filter: dict
    :param filter: The filter key and value with which to filter your DescribeImages results.
            tagStatus (string) --The tag status with which to filter your DescribeImages results. You can filter results based on whether they are TAGGED or UNTAGGED .
            

    :rtype: dict
    :return: {
        'imageDetails': [
            {
                'registryId': 'string',
                'repositoryName': 'string',
                'imageDigest': 'string',
                'imageTags': [
                    'string',
                ],
                'imageSizeInBytes': 123,
                'imagePushedAt': datetime(2015, 1, 1)
            },
        ],
        'nextToken': 'string'
    }
    
    
    :returns: 
    (string) --
    
    """
    pass
