def create_collection(CollectionId=None):
    """
    Creates a collection in an AWS Region. You can add faces to the collection using the operation.
    For example, you might create collections, one for each of your application users. A user can then index faces using the IndexFaces operation and persist results in a specific collection. Then, a user can search the collection for faces in the user-specific container.
    For an example, see  example1 .
    This operation requires permissions to perform the rekognition:CreateCollection action.
    See also: AWS API Documentation
    
    Examples
    This operation creates a Rekognition collection for storing image data.
    Expected Output:
    
    :example: response = client.create_collection(
        CollectionId='string'
    )
    
    
    :type CollectionId: string
    :param CollectionId: [REQUIRED]
            ID for the collection that you are creating.
            

    :rtype: dict
    :return: {
        'StatusCode': 123,
        'CollectionArn': 'string'
    }
    
    
    """
    pass
