def search_node_hgnc_names(graph, query):
return search_node_namespace_names(graph, query, namespace='<STR_LIT>')<EOL>
Search for nodes with the HGNC namespace and whose names containing a given string(s).

    :param pybel.BELGraph graph: A BEL graph
    :param query: The search query
    :type query: str or iter[str]
    :return: An iterator over nodes whose names match the search query
    :rtype: iter