def evalDrop(ctx, u):
    if ctx.dataset.store.graph_aware:
        for g in _graphAll(ctx, u.graphiri):
            ctx.dataset.store.remove_graph(g)
    else:
        evalClear(ctx, u)
test binding in/out with cursor.var() method
dataset/ETHPy150Open RDFLib/rdflib/rdflib/plugins/sparql/update.py/evalDrop--crossover with--dataset/ETHPy150Open cloudera/hue/desktop/core/ext-py/cx_Oracle-5.1.2/test/StringVar.py/TestStringVar.testBindInOutVarDirectSet