Integrate function 'process_taxa()'

def process_taxa(edges): # Integrate process_taxa() function into data_tools package ?
    nodes = edges.drop_duplicates(subset=['taxon', 'tax_id'])[['taxon', 'taxonLabel', 'tax_id']]
    nodes = add_curi(nodes, {'tax_id': 'NCBITaxon'})
    return standardize_nodes(nodes, 'taxon')