def _parse_document_id(elm_tree):
    """Given the parsed xml to an `ElementTree`,
    parse the id from the content.

    """
    xpath = '//md:content-id/text()'
    return [x for x in elm_tree.xpath(xpath, namespaces=COLLECTION_NSMAP)][0]
def _parse_document_id(elm_tree):
    """Given the parsed xml to an `ElementTree`,
    parse the id from the content.

    """
    xpath = '//md:content-id/text()'
    return [x for x in elm_tree.xpath(xpath, namespaces=COLLECTION_NSMAP)][0]
def _parse_document_id ( elm_tree ) : xpath = '//md:content-id/text()' return [ x for x in elm_tree . xpath ( xpath , namespaces = COLLECTION_NSMAP ) ] [ 0 ]
Given the parsed xml to an `ElementTree`,
    parse the id from the content.
Given the parsed xml to an ElementTree parse the id from the content .