def add_to_dict(data, key, value):
    if key in data:
        data[key].add(value)
    else:
        data[key] = {value}
Returns the Index object with the specified name or None if not found.
dataset/ETHPy150Open django/django/django/db/models/sql/query.py/add_to_dict--crossover with--dataset/ETHPy150Open espeed/bulbs/bulbs/neo4jserver/index.py/VertexIndexProxy.get